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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

track
To follow the tracks or traces of; to pursue by following the marks of the feet; to trace; to trail; as, to track a deer in the snow. 'It was often found impossible to track the robbers to their retreats among the hills and morasses.' (Macaulay) ... 2. To draw along continuously, as a vessel, by a line, men or animals on shore being the motive power …

track and field
Sports performed on a track, field, or arena and including running events and other competitions, such as the pole vault, shot put, etc. ... (12 Dec 1998) ...

tract
<anatomy> A region, principally one of some length, specifically a collection or bundle of nerve fibres having the same origin, function and termination (tractus) or a number of organs, arranged in series, subserving a common function. ... Origin: L. Tractus ... (18 Nov 1997) ...

tract of Goll
Synonym for fasciculus gracilis ... gracile fasciculus ...

tract of Munzer and Wiener
Synonym for tectopontine tract ... A fibre bundle arising in the superior colliculus, passing caudoventrally on the same side along the medial side of the lateral lemniscus, issuing fibres terminating in the lateral zone of the mesencephalic tegmentum, and ending in the lateral part of the gray matter of the ventral part of the pons. ... Synonym: tra …

tract of Schutz
Synonym for dorsal longitudinal fasciculus ... A bundle of thin, poorly myelinated nerve fibres reciprocally connecting the periventricular zone of the hypothalamus with ventral parts of the central gray substance of the midbrain. ... Synonym: fasciculus longitudinalis dorsalis, Schutz' bundle, tract of Schutz. ... (05 Mar 2000) ...

tractellum
An anterior locomotor flagellum of a protozoon. ... Origin: Mod. L. Dim. Of L. Tractus ... (05 Mar 2000) ...

traction
<dentistry> The act of drawing or pulling the teeth. ... (08 Jan 1998) ...

traction alopecia
Circumscribed or diffuse loss of hair resulting from repetitive traction on the hair by pulling or twisting; also occurs after excessive application of hair 'softeners' such as permanent wave solutions or hot combs. Alopecia marginalis is a form of traction alopecia. ... Synonym: traumatic alopecia. ... (05 Mar 2000) ...

traction atrophy
Synonym for striae cutis distensae ... Bands of thin wrinkled skin, initially red but becoming purple and white, which occur commonly on the abdomen, buttocks, and thighs at puberty and/or during and following pregnancy, and result from atrophy of the dermis and overextension of the skin; also associated with ascites and Cushing's syndrome. ... Synon …

traction diverticulum
A diverticulum formed by the pulling force of contracting bands of adhesion, occurring mainly in the distal oesophagus, from tuberculous hilar or mediastinal lymphadenitis. ... (05 Mar 2000) ...

traction epiphysis
A secondary centre of ossification at the site of attachment of a tendon. ... (05 Mar 2000) ...

tractotomy
<procedure> Interruption of a nerve tract in the brainstem or spinal cord. ... Origin: L. Tractus, tract, + G. Tome, incision ... (05 Mar 2000) ...

tractrix
<geometry> A curve such that the part of the tangent between the point of tangency and a given straight line is constant; so called because it was conceived as described by the motion of one end of a tangent line as the other end was drawn along the given line. ... (11 Mar 1998) ...

tractus
Synonym: tract. ... Origin: L. A drawing, drawing out, extent, tract, fr. Traho, pp. Tractus, to draw ... (05 Mar 2000) ...

tractus centralis tegmenti
Synonym for central tegmental tract ... A large fibre bundle passing longitudinally through the central mesencephalic and pontine tegmentum, distinguished from adjacent longitudinal groups of fibre-fascicles of the reticular formation by a more compact composition. In transverse sections of the mesencephalon the bundle occupies a large triangular ar …

tractus cerebellorubralis
Synonym for cerebellorubral tract ... That component of the superior cerebellar peduncle (brachium conjunctivum) which distributes fibres within the red nucleus of the opposite side. ... Synonym: tractus cerebellorubralis. ... (05 Mar 2000) ...

tractus cerebellothalamicus
Synonym for cerebellothalamic tract ... That component of the superior cerebellar peduncle (brachium conjunctivum) which originates in the cerebellar nuclei, crosses completely in the decussation of the brachia conjunctiva, bypasses the red nucleus, and terminates in parts of the ventral anterior, ventral intermediate, ventral posterolateral, and ce …

tractus corticobulbaris
Synonym for corticobulbar tract ... <physiology> Collective term for those fibres (corticonuclear fibres) which separate from the corticospinal tract in the course of the latter's descent through the pons and medulla oblongata. ... Fibres of this tract innervate the motor nuclei of the trigeminal, facial, and hypoglossal nerves (perhaps also th …

tractus corticopontini
Synonym for corticopontine tract ... <anatomy, physiology> Collective term for the multitude of fibres which, originating in all of the major subdivisions of the cerebral cortex, descend in the internal capsule and crus cerebri to terminate in the nuclei of the ventral part of the pons. ... Individual components of this massive fibre system are …

tractus corticospinalis
Synonym for pyramidal tract ... A massive bundle of fibres originating from pyramidal cells of various sizes in the fifth layer of the precentral motor (area 4), the premotor area (area 6), and to a lesser extent from the postcentral gyrus. Cells of origin in area 4 include the gigantopyramidal cells of Betz. Fibres from these cortical regions desce …

tractus corticospinalis anterior
Synonym for anterior pyramidal tract ... Uncrossed fibres forming a small bundle in the pyramidal tract. ... See: pyramidal tract. ... Synonym: tractus corticospinalis anterior, tractus pyramidalis anterior, anterior corticospinal tract, anterior pyramidal fasciculus, direct pyramidal tract, fasciculus corticospinalis anterior, fasciculus pyramidalis …

tractus corticospinalis lateralis
Synonym for lateral pyramidal tract ... Those fibres of the pyramidal tract that cross to the opposite side in the pyramidal decussation and descend in the dorsal half of the lateral funiculus of the spinal cord; they are distributed throughout the length of the spinal cord to interneurons of the zona intermedia of the spinal gray matter. ... See: py …

tractus descendens nervi trigemini
Synonym for spinal tract of trigeminal nerve ... <anatomy, nerve> A compact fibre bundle, comma-shaped on transverse section, composed of primary sensory fibres of the portio major of the trigeminal nerve, descending from the level of the entrance of the trigeminus in the upper pons down through the dorsolateral region of the rhombencephalic t …

tractus dorsolateralis
Synonym for dorsolateral fasciculus ... A longitudinal bundle of thin, unmyelinated and poorly myelinated fibres capping the apex of the posterior horn of the spinal gray matter, composed of posterior root fibres and short association fibres that interconnect neighboring segments of the posterior horn. ... Synonym: fasciculus dorsolateralis, tractus …

tractus fastigiobulbaris
Synonym for fastigiobulbar tract ... A fibre bundle originating in the fastigial nucleus (nucleus tecti) of both sides, passing out of the cerebellum in the inferior cerebellar peduncle (corpus restiforme), and distributing its fibres to the vestibular nuclei and other cell groups in the medulla oblongata. Prominent crossed fibres loop over the dors …

tractus frontopontinus
Synonym for frontopontine tract ... A large group of fibres arising from the frontal lobe of the cerebral hemisphere, especially the precentral gyrus, descending in the capsula interna, farther caudally composing the medial part of the crus cerebri in which they extend caudalward to end in the gray matter (pontine nuclei) of the ventral part of the …

tractus habenulopeduncularis
Synonym for habenulopeduncular tract ... tractus habenulopeduncularis ...

tractus iliotibialis
Synonym for iliotibial tract ... A fibrous reinforcement of the fascia lata on the lateral surface of the thigh, extending from the crest of the ilium to the lateral condyle of the tibia. ... Synonym: tractus iliotibialis, iliotibial band, Maissiat's band. ... (05 Mar 2000) ...

tractus occipitopontinus
Synonym for occipitopontine tract ... A group of fibres originating in the occipital lobe of the cerebral hemisphere and descending in the internal capsule and lateral part of the crus cerebri to the pontine nuclei or ventral part of the pons. ... Synonym: tractus occipitopontinus. ... (05 Mar 2000) ...

tractus olfactorius
Synonym for olfactory tract ... A nervelike, white band composed primarily of nerve fibres originating from the mitral cells and tufted cells of the olfactory bulb but also containing the scattered cells of the anterior olfactory nucleus. The tract is closely applied to the ventral surface of the frontal lobe, and attaches itself to the base of the …

tractus olivocerebellaris
Synonym: olivocerebellar tract. ... (05 Mar 2000) ...

tractus opticus
Synonym for optic tract ... The continuation of the optic nerve fibres beyond (behind) the latter's hemidecussation in the optic chiasm; each of the two symmetrical optic tracts is composed of fibres originating from the temporal half of the retina of the ipsilateral eye and a nearly equal number of fibres from the nasal half of the contralateral re …

tractus parietopontinus
Synonym for parietopontine tract ... A system of fibres originating in the parietal lobe of the cerebral hemisphere which descend in the internal capsule and lateral part of the crus cerebri to terminate in the pontine nuclei or ventral part of the pons. ... Synonym: tractus parietopontinus. ... (05 Mar 2000) ...

tractus pyramidalis
Synonym for pyramidal tract ... A massive bundle of fibres originating from pyramidal cells of various sizes in the fifth layer of the precentral motor (area 4), the premotor area (area 6), and to a lesser extent from the postcentral gyrus. Cells of origin in area 4 include the gigantopyramidal cells of Betz. Fibres from these cortical regions desce …

tractus pyramidalis anterior
Synonym for anterior pyramidal tract ... Uncrossed fibres forming a small bundle in the pyramidal tract. ... See: pyramidal tract. ... Synonym: tractus corticospinalis anterior, tractus pyramidalis anterior, anterior corticospinal tract, anterior pyramidal fasciculus, direct pyramidal tract, fasciculus corticospinalis anterior, fasciculus pyramidalis …

tractus pyramidalis lateralis
Synonym for lateral pyramidal tract ... Those fibres of the pyramidal tract that cross to the opposite side in the pyramidal decussation and descend in the dorsal half of the lateral funiculus of the spinal cord; they are distributed throughout the length of the spinal cord to interneurons of the zona intermedia of the spinal gray matter. ... See: py …

tractus reticulospinalis
Synonym for reticulospinal tract ... Collective term denoting a variety of fibre tracts descending to the spinal cord from the reticular formation of the pons and medulla oblongata. Part of these fibres conduct impulses from the neural mechanisms regulating autonomic functions to the corresponding somatic and visceral motor neurons of the spinal cor …

tractus rubrospinalis
Synonym for rubrospinal tract ... A somatotopically organised fibre bundle, relatively small in humans, arising from the red nucleus, immediately crossing in the ventral tegmental decussation, descending near the lateral surface of the brainstem into the lateral funiculus of the spinal cord at the ventral border of the lateral pyramidal tract. It te …

tractus solitarius
Synonym for solitary tract ... A slender, compact fibre bundle extending longitudinally through the dorsolateral region of the medullary tegmentum, surrounded by the nucleus of the solitary tract, below the obex decussating over the central canal, and descending over some distance into the upper cervical segments of the spinal cord. It is composed o …

tractus spinalis nervi trigemini
Synonym for spinal tract of trigeminal nerve ... <anatomy, nerve> A compact fibre bundle, comma-shaped on transverse section, composed of primary sensory fibres of the portio major of the trigeminal nerve, descending from the level of the entrance of the trigeminus in the upper pons down through the dorsolateral region of the rhombencephalic t …

tractus spinocerebellaris anterior
Synonym for anterior spinocerebellar tract ... A bundle of fibres originating in the base of the posterior horn and zona intermedia throughout lumbosacral segments of the spinal cord, crossing to the opposite side and ascending in a peripheral position in the ventral half of the lateral funiculus. In its ascent through the rhombencephalon, the tract …

tractus spinocerebellaris posterior
Synonym for posterior spinocerebellar tract ... A compact bundle of heavily myelinated, thick fibres at the periphery of the dorsal half of the lateral funiculus of the spinal cord, originating in the ipsilateral thoracic nucleus (column of Clarke) and ascending by way of the inferior cerebellar peduncle. Terminals end as mossy fibres in the granula …

tractus spinotectalis
Synonym for spinotectal tract ... The relatively small component of the spinothalamic tractus that terminates in the intermediate and deep layers of the superior colliculus and in parts of the periaqueductal gray. ... Synonym: tractus spinotectalis. ... (05 Mar 2000) ...

tractus spinothalamicus
Synonym for spinothalamic tract ... A large ascending fibre bundle in the ventral half of the lateral funiculus of the spinal cord, arising from cells in the posterior horn at all levels of the cord, which cross within their segments of origin in the white commissure. In their contralateral ascent, the bundle is intermingled with numerous intersegme …

tractus spinothalamicus anterior
Synonym for anterior spinothalamic tract ... The more anterior or ventral part of the spinothalamic tract that is involved in tactile sensation. ... See: spinothalamic tract. ... Synonym: tractus spinothalamicus anterior, ventral spinothalamic tract. ... (05 Mar 2000) ...

tractus spinothalamicus lateralis
Synonym: lateral spinothalamic tract. ... (05 Mar 2000) ...

tractus spiralis foraminosus
Synonym for spiral foraminous tract ... Openings in the cochlear area of the bottom of the internal acoustic meatus through which the fibres of the cochlear nerve leave the bony labyrinth to enter the cranial cavity. ... Synonym: tractus spiralis foraminosus. ... (05 Mar 2000) ...

tractus supraopticohypophysialis
Synonym for supraopticohypophysial tract ... A bundle of unmyelinated fibres originating from all cells of the supraoptic nucleus and an estimated 20% of those of the paraventricular nucleus of the hypothalamus, which extend through the infundibulum and pituitary stalk to their endings in the posterior lobe of the hypophysis; the fibres convey neuro …

tractus tectobulbaris
Synonym for tectobulbar tract ... Fibres originating in the deep layers of the superior colliculus and accompanying the tectospinal tract but, unlike the latter, terminating in medial regions of the pontine and medullary tegmentum. ... Synonym: tractus tectobulbaris. ... (05 Mar 2000) ...

tractus tectopontinus
Synonym for tectopontine tract ... A fibre bundle arising in the superior colliculus, passing caudoventrally on the same side along the medial side of the lateral lemniscus, issuing fibres terminating in the lateral zone of the mesencephalic tegmentum, and ending in the lateral part of the gray matter of the ventral part of the pons. ... Synonym: tra …

tractus tectospinalis
Synonym for tectospinal tract ... A bundle of thick, heavily myelinated fibres originating in the deep layers of the superior colliculus, crossing to the opposite side in the dorsal tegmental decussation, descending along the median plane, between the medial longitudinal fasciculus dorsally, the medial lemniscus ventrally, into the anterior funiculu …

tractus tegmentalis centralis
Synonym for central tegmental tract ... A large fibre bundle passing longitudinally through the central mesencephalic and pontine tegmentum, distinguished from adjacent longitudinal groups of fibre-fascicles of the reticular formation by a more compact composition. In transverse sections of the mesencephalon the bundle occupies a large triangular ar …

tractus temporopontinus
Synonym for temporopontine tract ... A fibre group originating in the cerebral cortex of the temporal lobe, particularly the superior and middle temporal gyri, following the sublenticular limb of the internal capsule into the lateral margin of the crus cerebri in which it descends to its termination in the pontine nuclei or the ventral part of the p …

tractus tuberoinfundibularis
Synonym for tuberoinfundibular tract ... A system of fine, unmyelinated fibres apparently originating from small-celled nuclei of the tuber cinereum, especially the arcuate nucleus, and terminating in the median eminence of the infundibulum, in contact with modified ependymal cells and the capillary tufts from which the hypothalamohypophysial portal …

tractus vestibulospinalis
Synonym for vestibulospinal tract ... A somatopically organised fibre bundle originating from the lateral vestibular nucleus (nucleus of Deiters) which descends uncrossed into the anterior funiculus of the spinal cord lateral to the anterior median fissure; the tractus extends throughout the length of the cord, distributing fibres at all levels to t …

trade
1. A track; a trail; a way; a path; also, passage; travel; resort. 'A postern with a blind wicket there was, A common trade to pass through Priam's house.' (Surrey) 'Hath tracted forth some salvage beastes trade.' (Spenser) 'Or, I'll be buried in the king's highway, Some way of common trade, where subjects' feet May hourly trample on their sovereig …

trade name product
<pharmacology> Trademarked proprietary preparations containing the generic substance. Some foreign trade name products have been selectively included here due to the relative popularity of the generic medication. ... (17 Mar 1998) ...

tradition
1. The act of delivering into the hands of another; delivery. 'A deed takes effect only from the tradition or delivery.' ... 2. The unwritten or oral delivery of information, opinions, doctrines, practices, rites, and customs, from father to son, or from ancestors to posterity; the transmission of any knowledge, opinions, or practice, from forefathe …

traffic
1. Commerce, either by barter or by buying and selling; interchange of goods and commodities; trade. 'A merchant of great traffic through the world.' (Shak) 'The traffic in honors, places, and pardons.' (Macaulay) ... This word, like trade, comprehends every species of dealing in the exchange or passing of goods or merchandise from hand to hand for …

trafficking
Synonym for processing ... 1. Posttranslational modification of proteins, particularly secretory proteins and proteins targeted for membranes or specific cellular locations. ... Synonym: trafficking. ... 2. Posttranscriptional modification of polynucleic acids. ... (05 Mar 2000) ...

tragacanth
<botany> A kind of gum procured from a spiny leguminous shrub (Astragalus gummifer) of Western Asia, and other species of Astragalus. ... It comes in hard whitish or yellowish flakes or filaments, and is nearly insoluble in water, but slowly swells into a mucilaginous mass, which is used as a substitute for gum arabic in medicine and the arts. …

tragacantha
A gummy exudation from Astragalus species, including A. Gummifer, shrubs of the eastern end of the Mediterranean; it occurs as bands or strings of a tough gummy substance, forming a jelly-like mucilage with 50 parts of water; used as a demulcent and excipient in emulsions and suspensions. ... Origin: G. Tragakantha, a gum-producing shrub, fr. Tragos …

tragal
Relating to the tragus. ... (05 Mar 2000) ...

tragi
1. Plural of tragus. ... 2. The hairs growing at the entrance to the external acoustic meatus. ... (05 Mar 2000) ...

tragicus
See: tragicus muscle. ... (05 Mar 2000) ...

tragicus muscle
<anatomy> A band of vertical muscular fibres on the outer surface of the tragus of the ear. ... Synonym: musculus tragicus, muscle of tragus, Valsalva's muscle. ... (05 Mar 2000) ...

tragion
A cephalometric point in the notch just above the tragus of the ear; it lies 1 to 2 mm below the spine of the helix, which can be palpated. ... (05 Mar 2000) ...

tragomaschalia
Bromidrosis of the axillae. ... Origin: G. Tragomaschalos, with smelling armpits, fr. Tragos, goat, + maschale, the axilla ... (05 Mar 2000) ...

tragopan
<zoology> Any one of several species of Asiatic pheasants of the genus Ceriornis. They are brilliantly coloured with a variety of tints, the back and breast are usually covered with white or buff ocelli, and the head is ornamented with two bright-coloured, fleshy wattles. The crimson tragopan, or horned pheasant (C. Satyra), of India is one o …

tragophonia
Tragophony ... Synonym: egophony. ... Origin: G. Tragos, goat, + phone, voice ... (05 Mar 2000) ...

trail
1. To be drawn out in length; to follow after. 'When his brother saw the red blood trail.' (Spenser) ... 2. To grow to great length, especially when slender and creeping upon the ground, as a plant; to run or climb. ... 1. A track left by man or beast; a track followed by the hunter; a scent on the ground by the animal pursued; as, a deer trail. 'The …

trail making test
The subject's ability to connect 25 numbered and lettered circles in sequence in a specific length of time. A score of 12 or below is suggestive of organic brain damage. ... (12 Dec 1998) ...

trailer
One who, or that which, trails. 2. A wheeled vehicle without a motor, designed to be drawn by a powered vehicle; especially. Such a vehicle equipped as a mobile dwelling unit, used as such when parked, also called mobile home. 3. A trailer (2) designed to carry a heavy object, as a boat trailer. 4. (Movies) A short blank segment of movie film attac …

trailing
<botany> Trailing spring, a spring fixed in the axle box of the trailing wheels of a locomotive engine, and so placed as to assist in deadening any shock which may occur. ... Trailing wheel, a hind wheel of a locomotive when it is not a driving wheel; also, one of the hind wheels of a carriage. ... (11 Mar 1998) ...

train
1. To be drilled in military exercises; to do duty in a military company. ... 2. To prepare by exercise, diet, instruction, etc, for any physical contest; as, to train for a boat race. ... 1. That which draws along; especially, persuasion, artifice, or enticement; allurement. 'Now to my charms, and to my wily trains.' ... 2. Hence, something tied to a …

train-of-four stimulus
A method for measuring magnitude and type of neuromuscular blockade, based upon the ratio of the amplitude of the fourth evoked mechanical response to the first one, when four supramaximal 2-Hz electrical currents are applied for 2 seconds to a peripheral motor nerve. ... (05 Mar 2000) ...

trained reflex
Synonym for conditioned reflex ... A reflex that is gradually developed by training and association through the frequent repetition of a definite stimulus. ... See: conditioning. ... Synonym: acquired reflex, behaviour reflex, trained reflex. ... (05 Mar 2000) ...

training
The act of one who trains; the act or process of exercising, disciplining, etc.; education. ... <botany> Fan training, the operation of training fruit trees, grapevines, etc, so that the branches shall spread out laterally in a horizontal direction. ... Training day, a day on which a military company assembles for drill or parade. ... Training s …

training analysis
Psychoanalytic treatment for the purpose of training of an analytic candidate carried out under the official auspices of a psychoanalytic training institute. ... Synonym: didactic analysis. ... (05 Mar 2000) ...

training group
Any group emphasizing training in self-awareness and group dynamics. ... See: sensitivity training group. ... (05 Mar 2000) ...

training support
Financial support for training including both student stipends and loans and training grants to institutions. ... (12 Dec 1998) ...

trainwheel rhythm
Synonym for quadruple rhythm ... A quadruple cadence to the heart sounds due to the easy audibility of both third and fourth heart sounds, indicative of serious myocardial disease. ... Synonym: trainwheel rhythm. ... (05 Mar 2000) ...

trait
A qualitative characteristic; a discrete attribute as contrasted with metrical character. A trait is amenable to segregation rather than quantitative analysis; it is an attribute of phenotype, not of genotype. ... Origin: Fr. From L. Tractus, a drawing out, extension ... (05 Mar 2000) ...

trajector
An instrument for locating the course of a bullet in a wound. ... Origin: L. Fr. Tra-jicio, pp. -jectus, to throw over or across ... (05 Mar 2000) ...

tram lines
The images of bronchial walls, usually thickened; colloq., British. ... Synonym: radiographic parallel line shadows. ... (05 Mar 2000) ...

tramadol
<chemical> A narcotic analgesic proposed for severe pain. It may be habituating. ... Pharmacological action: analgesics, opioid, narcotics. ... Chemical name: Cyclohexanol, 2-((dimethylamino)methyl)-1-(3-methoxyphenyl)-, cis-(+-)- ... (12 Dec 1998) ...

tramazoline hydrochloride
2-[(5,6,7,8-Tetrahydro-1-naphthyl)amino]-2-imidazoline hydrochloride;an adrenergic and sympathomimetic agent used for nasal decongestion. ... (05 Mar 2000) ...

trammel
1. A kind of net for catching birds, fishes, or other prey. ... 2. A net for confining a woman's hair. ... 3. A kind of shackle used for regulating the motions of a horse and making him amble. ... 4. Whatever impedes activity, progress, or freedom, as a net or shackle. '[They] disdain the trammels of any sordid contract.' (Jeffrey) ... 5. An iron hook …

trance
1. A tedious journey. ... 2. A state in which the soul seems to have passed out of the body into another state of being, or to be rapt into visions; an ecstasy. ... 3. <neurology> A condition, often simulating death, in which there is a total suspension of the power of voluntary movement, with abolition of all evidences of mental activity and t …

trance coma
Synonym for lethargic hypnosis ... The deep sleep following major hypnosis. ... Synonym: trance coma. ... (05 Mar 2000) ...

trancscendental
1. Supereminent; surpassing others; as, transcendental being or qualities. ... 2. <philosophy> In the Kantian system, of or pertaining to that which can be determined a priori in regard to the fundamental principles of all human knowledge. What is transcendental, therefore, transcends empiricism; but is does not transcend all human knowledge, …

tranexamic acid
<chemical> 4-(aminomethyl)cyclohexanecarboxylic acid. Antifibrinolytic haemostatic used in severe haemorrhage. ... Pharmacological action: antifibrinolytic agent. ... Chemical name: Cyclohexanecarboxylic acid, 4-(aminomethyl)-, trans- ... (12 Dec 1998) ...

tranquilliser
<pharmacology> A medication with a calming, soothing effect that relieves anxiety. ... Most sedatives can also promote sleep. Overdosage of a sedative medication can lead to dangerous respiratory depression (slowed breathing). A large group of medications with sedative effects are the benzodiazepines. ... The first tranquilliser librium (chlord …

tranquillising agent
<pharmacology> A traditional grouping of drugs said to have a soothing or calming effect on mood, thought, or behaviour. ... Included here are the anti-anxiety agents (minor tranquillisers), antimanic agents, and the antipsychotic agents (major tranquillisers). These drugs act by different mechanisms and are used for different therapeutic purp …

trans configuration
1. <chemistry> The configuration of an organic molecule containing a double bond between two carbon atoms, where the largest, most complex R groups attached to each carbon are on opposite sides. ... Alternatively: The configuration of an organic molecule containing a ring, where the largest, most complex R groups attached to each carbon are on …

trans Golgi network
<cell biology> A complex of membranous tubules and vesicles, near the trans face of the Golgi, which is thought to be a major intersection for intracellular traffic of vesicles. ... (18 Nov 1997) ...

trans splicing
<molecular biology> Relating to RNA splicing of two different pre mRNA molecules together. Seems to rely on intron like sequences. ... Contrasts with the normal cis splicing of conventional RNA molecules. ... (19 Jan 1998) ...

trans-
1. Prefix denoting across, through, beyond; opposite of cis-. ... 2. In genetics, denoting the location of two genes on opposite chromosomes of a homologous pair. ... 3. In organic chemistry, a form of geometric isomerism in which the atoms attached to two carbon atoms, joined by double bonds, are located on opposite sides of the molecule. ... 4. In b …

trans-4-coumaroyl esterase
<enzyme> From bacterial and fungal cultures; cleaves coumaric acid from plant cell wall polysaccharides; see also feruloyl-4-coumaroyl esterase ... Registry number: EC 3.1.1.- ... Synonym: trans-p-coumaroyl esterase, p-coumaroyl esterase, p-coumaric acid esterase ... (26 Jun 1999) ...