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

tent
<surgery> A roll of lint or linen, or a conical or cylindrical piece of sponge or other absorbent, used chiefly to dilate a natural canal, to keep open the orifice of a wound, or to absorb discharges. ... A probe for searching a wound. 'The tent that searches To the bottom of the worst.' (Shak) ... Origin: F. Tente. See Tent to probe. ... 1. A p …

tentacle
<zoology> A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion. ... <zoology> Tentacle sheath, a sheathlike structure around the base of the tentacles of many mollusks. ... Origin: NL. Tentaculum, from L. Te …

tenth cranial nerve
Synonym for vagus nerve ... <anatomy, nerve> The vagus nerve enervates the gut (gastrointestinal tract), heart and larynx. ... Lesions of the tenth nerve usually result in a horse voice, but may also cause difficulty in swallowing or talking. ... Synonym: cranial nerve X. ... (27 Sep 1997) ...

tenth-value layer
<radiobiology> Thickness of a specified substance which, when introduced into the path of a given beam of radiation, reduces the absorbed dose index or dose-equivalent index to one-tenth. ... The magnitude of the tenth-value layer may be different for absorbed dose index and dose equivalent index. ... (16 Dec 1997) ...

tentorial
Relating to a tentorium. ... (05 Mar 2000) ...

tentorial angle
The angle made by the plane of the tentorium and the basicranial axis. ... (05 Mar 2000) ...

tentorial nerve
<anatomy, nerve> The tentorial branch, a branch arising in a recurrent fashion from the intracranial portion of the ophthalmic nerve supplying the tentorium and supratentorial falx cerebri. ... Synonym: ramus tentorii, nervus tentorii. ... (05 Mar 2000) ...

tentorial notch
The triangular opening in the tentorium cerebelli through which the brainstem extends from the posterior into the middle cranial fossa. ... Synonym: incisura tentorii, notch of tentorium. ... (05 Mar 2000) ...

tentorial sinus
straight sinus ...

tentorial surface
Those areas of the occipital lobe (inferior aspect) and the cerebellum (superior aspect) that are apposed to the superior and inferior surfaces, respectively, of the tentorium cerebelli. ... (05 Mar 2000) ...

tentorium of hypophysis
Synonym for diaphragm of sella ... A fold of dura mater extending transversely across the sella turcica and roofing over the hypophyseal fossa; it is perforated in its centre for the passage of the infundibulum. ... Synonym: diaphragma sellae, diaphragm sellae, tentorium of hypophysis. ... (05 Mar 2000) ...

tenuazonic acid
<chemical> 3-acetyl-5-sec-butyl-4-hydroxy-3-pyrrolin-2-one. A metabolite found in a strain of the fungus alternaria tenuis auct. Which functions as an antibiotic with antiviral and antineoplastic properties, and may also act as a mycotoxin. ... Pharmacological action: antibiotics, antineoplastic, antiviral agents. ... Chemical name: 2H-Pyrrol-2 …

tenuiexenous
<plant biology> Of a pollen grain, with a thin exine. ... (09 Oct 1997) ...

tenuin
<protein> Sub plasmalemmal protein (400 kD) from adherens junctions, associated with membrane insertions of microfilament bundles and membrane adjacent to circumferential microfilament bundles of epithelial cells. ... (18 Nov 1997) ...

tenuity
1. The quality or state of being tenuous; thinness, applied to a broad substance; slenderness, applied to anything that is long; as, the tenuity of a leaf; the tenuity of a hair. ... 2. Rarily; rareness; thinness, as of a fluid; as, the tenuity of the air; the tenuity of the blood. ... 3. Poverty; indigence. ... 4. Refinement; delicacy. ... Origin: L. …

Teodorico Borgognoni
Synonym for Borgognoni, Teodorico ... <person> Friar Theodoric of Lucca was a Dominican monk, Bishop of Cervia, and physician to Pope Innocent IV, who taught that suppuration was not necessary for wound healing. ... Instead of leaving a fresh wound open, Theodoric closed it with sutures, thus avoiding purulency. He was criticised sternly by Guy …

TEPA
<abbreviation> Triethylenephosphoramide. ... (05 Mar 2000) ...

tepal
<botany> A perianth segment in a flower in which all the perianth segments are similar in appearance. ... (09 Oct 1997) ...

tephromalacia
Softening of the gray matter of the brain or spinal cord. ... Origin: G. Tephros, ashen-gray, + malakia, softness ... (05 Mar 2000) ...

tephrosia
<botany> A genus of leguminous shrubby plants and herbs, mostly found in tropical countries, a few herbaceous species being North American. The foliage is often ashy-pubescent, whence the name. ... The Tephrosia toxicaria is used in the West Indies and in Polynesia for stupefying fish. T. Purpurea is used medicinally in the East Indies. T. Vir …

tephrylometer
An instrument for measuring the thickness of the cerebral cortex; it consists of a graduated tube of thin glass which is inserted into the brain substance, so the depth of the gray matter can be read off on the scale. ... Origin: G. Tephros, ashen, + hyle, stuff, + metron, measure ... (05 Mar 2000) ...

TEPP
<abbreviation> Tetraethyl pyrophosphate. ... (05 Mar 2000) ...

teprotide
<chemical> 2-l-tryptophan-3-de-l-leucine-4-de-l-proline-8-l-glutamine bradykinin potentiator b. A synthetic nonapeptide with the sequence pyr-trp-pro-arg-pro-gln-ile-pro-pro, which is identical to that of the peptide from the venom of the snake, bothrops jararaca. It acts as an inhibitor of kininase II and angiotensin I and has been proposed …

TER ATPase
<enzyme> Catalyses hydrolysis of (gamma(32)-p)ATP and is phosphorylated in presence of magnesium(ii); hexamer of 100-kD subunits; isolated from transitional endoplasmic reticulum; genbank u11760 ... Registry number: EC 3.6.1.- ... (26 Jun 1999) ...

tera
<physics> A prefix used in the SI and metric systems to signify one trillion (10^12) times base unit. ... Origin: G. Teras, monster ... (21 Jun 2000) ...

teras
Foetus with deficient, redundant, misplaced, or grossly misshapen parts. ... Origin: G. ... (05 Mar 2000) ...

teratic
Relating to a teras. ... (05 Mar 2000) ...

teratism
Synonym: teratosis. ... Origin: G. Teratisma, fr. Teras ... (05 Mar 2000) ...

terato-
A teras. ... See: tera-. ... Origin: G. Teras, monster ... (05 Mar 2000) ...

teratoblastoma
<tumour> A tumour containing embryonic tissue differing from a teratoma in that not all germ layers are present. ... (05 Mar 2000) ...

teratocarcinoma
Synonym for teratoma ... <oncology, tumour> Malignant tumour (teratoma) thought to originate from primordial germ cells or misplaced blastomeres that contains tissues derived from all three embryonic layers, such as bone, muscle, cartilage, nerve, tooth buds and various glands. ... Accompanied by undifferentiated, pluripotent epithelial cells k …

teratogen
<pharmacology, obstetrics> An agent capable of causing malformations in embryos. Notorious example is thalidomide. ... See: teratogenicity ... (18 Nov 1997) ...

teratogenesis
The origin or mode of production of a malformed foetus; the disturbed growth processes involved in the production of a malformed neonate. ... Origin: terato-+ G. Genesis, origin ... (05 Mar 2000) ...

teratogenic
<pharmacology, obstetrics> Tending to produce anomalies of formation or teratism (= anomaly of formation or development: condition of a monster). ... See: teratogenicity ... Origin: Gr. Gennan = to produce ... (18 Nov 1997) ...

teratogenicity
<pharmacology> The ability to cause defects in a developing foetus. This is distinct from mutagenicity, which causes genetic mutations in sperms, eggs or other cells. Teratogenicity is a potential side effect of many drugs, such as thalidomide. ... (09 Oct 1997) ...

teratogens
An agent that causes the production of physical defects in the developing embryo. ... (12 Dec 1998) ...

teratoid
Resembling a teras. ... Origin: G. Teratodes, fr. Teras (terat-), monster, + eidos, resemblance ... (05 Mar 2000) ...

teratoid tumour
Synonym for teratoma ... <oncology, tumour> Malignant tumour (teratoma) thought to originate from primordial germ cells or misplaced blastomeres that contains tissues derived from all three embryonic layers, such as bone, muscle, cartilage, nerve, tooth buds and various glands. ... Accompanied by undifferentiated, pluripotent epithelial cells k …

teratologic
Pertaining to teratology. ... (18 Nov 1997) ...

teratological
Pertaining to teratology. ... (18 Nov 1997) ...

teratology
<embryology, study> The branch of embryology and pathology that deals with abnormal development and congenital malformations. ... (16 Dec 1997) ...

teratoma
<oncology, tumour> Malignant tumour (teratoma) thought to originate from primordial germ cells or misplaced blastomeres that contains tissues derived from all three embryonic layers, such as bone, muscle, cartilage, nerve, tooth buds and various glands. ... Accompanied by undifferentiated, pluripotent epithelial cells known as embryonal carcin …

teratoma orbitae
Synonym for orbitopagus ... Unequal conjoined twins in which the parasite, usually very imperfectly developed, is attached at an orbit of the autosite. ... See: conjoined twins. ... Synonym: teratoma orbitae. ... Origin: L. Orbita, orbit, + G. Pagos, something fixed ... (05 Mar 2000) ...

teratoma, ovarian
Tumour that develops from a totipotential germ cell (a primary oocyte) retained within the egg sac (ovary). Being totipotential, that cell can give rise to all orders of cells necessary to form mature tissues and often recognizable structures such as hair, bone and sebaceous (oily) material, neural tissue and teeth. These tumours may occur at any a …

teratomatous
Relating to or of the nature of a teratoma. ... (05 Mar 2000) ...

teratomatous cyst
A cyst containing structures derived from all three of the primary germ layers of the embryo. ... (05 Mar 2000) ...

teratophobia
<psychology> Morbid fear of carrying and giving birth to a malformed infant. ... Origin: terato-+ G. Phobos, fear ... (05 Mar 2000) ...

teratosis
An anomaly producing a teras. ... Synonym: teratism. ... Origin: terato-+ G. -osis, condition ... (05 Mar 2000) ...

teratospermia
Condition characterised by the presence of malformed spermatozoa in the semen. ... Origin: terato-+ G. Sperma, seed ... (05 Mar 2000) ...

terawatt
<radiobiology> One trillion (10^12) watts. ... (09 Oct 1997) ...

terazosin hydrochloride
1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(tetrahydro-2-furoyl)piperazine monohydrochloride dihydrate;a peripherally acting antiadrenergic used to treat hypertension. ... (05 Mar 2000) ...

terbutaline
<chemical> A selective beta-2 adrenergic agonist used as a bronchodilator and tocolytic. ... Pharmacological action: adrenergic beta-agonists, bronchodilator agents, sympathomimetic, tocolytic agents. ... Chemical name: 1,3-Benzenediol, 5-(2-((1,1-dimethylethyl)amino)-1-hydroxyethyl)- ... (12 Dec 1998) ...

terbutaline sulfate
Alpha-[(tert-Butylamino)methyl]-3,5-dihydroxybenzyl alcohol sulfate;a sympathomimetic drug with relatively selective B2 agonistic activity, used principally as a bronchodilator. ... (05 Mar 2000) ...

terebinthinate
1. Containing or impregnated with turpentine. ... 2. A preparation containing turpentine. ... Synonym: terebinthine. ... Origin: G. Terebinthos, the terebinth or turpentine-tree ... (05 Mar 2000) ...

terebinthine
Synonym for terebinthinate ... 1. Containing or impregnated with turpentine. ... 2. A preparation containing turpentine. ... Synonym: terebinthine. ... Origin: G. Terebinthos, the terebinth or turpentine-tree ... (05 Mar 2000) ...

terebinthinism
Synonym for turpentine poisoning ... Poisoning from oil of turpentine; symptoms include haematuria, albuminuria, and coma; the urine may have an odour of violets. ... Synonym: terebinthinism. ... (05 Mar 2000) ...

terebration
1. The act of boring, or of trephining. ... 2. A boring, piercing pain. ... Origin: L. Terebro, to bore, fr. Terebra, an auger ... (05 Mar 2000) ...

terephthalate 1,2-dioxygenase
<enzyme> Converts terephthalate to (1r,2s)-dihydroxy-3,5-cyclohexadiene-1,4-dicarboxylic acid and protocatechuate; has 2 components, r (reductase) and z (oxygenase); from comamonas testosteroni; partial amino acid sequence given in first source ... Registry number: EC 1.- ... Synonym: ter-1,2-dioxygenase ... (26 Jun 1999) ...

teres
Round and long; denoting certain muscles and ligaments. ... Origin: L. Round, smooth, fr. Tero, to rub ... (05 Mar 2000) ...

teres major
<anatomy, muscle> Origin, inferior angle and lower third of border of scapula; insertion, medial border of intertubercular groove of humerus; action, adducts and extends arm and rotates it medially; nerve supply, lower subscapular from posterior cord of brachial plexus (fifth and sixth cervical spinal nerves). ... Synonym: musculus teres major …

teres minor
<anatomy, muscle> Origin, upper two-thirds of the lateral border of scapula; insertion, lower facet of greater tuberosity of humerus; action, adducts arm and rotates it laterally; nerve supply, axillary (fifth and sixth cervical spinal nerves). ... Synonym: musculus teres minor. ... (05 Mar 2000) ...

terete
Cylindrical or nearly so, circular in cross-section. ... (09 Oct 1997) ...

terfenadine
<chemical> A selective histamine h1-receptor antagonist devoid of central nervous system depressant activity. The drug is used in the treatment of seasonal allergic rhinitis, asthma, allergic conjunctivitis, and chronic idiopathic urticaria. ... Pharmacological action: anti-allergic agents, anti-asthmatic agents, histamine h1 antagonists. ... C …

teriparatide
A synthetic polypeptide that consists of the 1-34 amino-acid fragment of human parathyroid hormone, the biologically active n-terminal region. The acetate is given by intravenous infusion in the differential diagnosis of hypoparathyroidism and pseudohypoparathyroidism. (reynolds jef(ed): martindale: the extra pharmacopoeia (electronic version). Mic …

term
1. That which limits the extent of anything; limit; extremity; bound; boundary. 'Corruption is a reciprocal to generation, and they two are as nature's two terms, or boundaries.' (Bacon) ... 2. The time for which anything lasts; any limited time; as, a term of five years; the term of life. ... 3. In universities, schools, etc, a definite continuous p …

term infant
An infant with gestational age between 37 completed weeks (259 completed days) and 42 completed weeks (294 completed days). ... (05 Mar 2000) ...

terminad
Toward the terminus. ... (05 Mar 2000) ...

terminal
1. Forming or pertaining to an end, placed at the end. ... 2. A termination, end or extremity. ... Origin: L. Terminalis ... (18 Nov 1997) ...

terminal addition enzyme
Synonym for DNA nucleotidylexotransferase ... <enzyme> A non-template-directed DNA polymerase normally found in vertebrate thymus and bone marrow. It catalyses the elongation of oligo- or polydeoxynucleotide chains and is widely used as a tool in the differential diagnosis of acute leukaemias in man. ... Chemical name: Nucleoside-triphosphate:D …

terminal artery
Synonym for end artery ... <anatomy, artery> An artery with insufficient anastomoses to maintain viability of the tissue supplied if occlusion of the artery occurs. ... Synonym: terminal artery. ... (05 Mar 2000) ...

terminal bar
Obsolete name for zonula occludens (tight junction). ... (18 Nov 1997) ...

terminal boutons
Synonym for axon terminals ... The somewhat enlarged, often club-shaped endings by which axons make synaptic contacts with other nerve cells or with effector cells (muscle or gland cells). As isolated, by homogenizing brain or spinal cord, they contain acetylcholine and the related enzymes. Terminals contain neurotransmitters of various kinds, somet …

terminal bronchiole
The end of the nonrespiratory conducting airway; the lining is simple columnar or cuboidal epithelium without mucous goblet cells; most of the cells are ciliated, but a few nonciliated serous secreting cells occur. ... Synonym: bronchiolus terminalis. ... (05 Mar 2000) ...

terminal care
Medical and nursing care of patients in the terminal stage of an illness. ... (12 Dec 1998) ...

terminal cisternae
Regions of the sarcoplasmic reticulum adjacent to T tubules and from which calcium is released when striated muscle is activated. ... (18 Nov 1997) ...

terminal crest
Synonym for crista terminalis ... A vertical crest on the interior wall of the right atrium that lies to the right of the sinus of the vena cava and separates this from the remainder of the right atrium. ... Synonym: tenia terminalis, terminal crest. ... (05 Mar 2000) ...

terminal deletion
Deletion involving the terminal part of a chromosome and leading to a adhesive terminus. ... (05 Mar 2000) ...

terminal disinfection
Application of disinfective measures after the patient has been removed, e.g., by death, or has ceased to be a source of infection. ... (05 Mar 2000) ...

terminal endocarditis
Synonym for nonbacterial thrombotic endocarditis ... Verrucous endocardial lesions occurring in the terminal stages of many chronic infectious and wasting diseases. ... Synonym: abacterial thrombotic endocarditis, cachectic endocarditis, terminal endocarditis, thromboendocarditis. ... (05 Mar 2000) ...

terminal filum
A long, slender connective tissue (pia mater) strand extending from the extremity of the medullary cone to the internal aspect of the spinal dural sac (filum terminale internum); stout strands of connective tissue attaching the spinal dural sac to the coccyx (filum terminale externum), commonly called the coccygeal ligament. ... Synonym: filum termi …

terminal haematuria
The presence of blood only in the last fraction of voided urine, usually indicating a prostatic source of bleeding. ... (05 Mar 2000) ...

terminal hair
A mature pigmented, coarse hair. ... (05 Mar 2000) ...

terminal hinge position
The mandibular hinge position from which further opening of the mandible would produce translatory rather than hinge movement. ... (05 Mar 2000) ...

terminal ileitis
Crohn's disease, a chronic inflammatory disease of the intestine involving only the end of the small intestine (the terminal ileum). Crohn's disease affects primarilythe small and large intestines but which can occur anywhere in the digestive system between the mouth and the anus. Named after burrill crohn who described the disease in 1932. The dis …

terminal ileus
Obstruction of the lower part of the small bowel. ... (05 Mar 2000) ...

terminal infection
An acute infection, commonly pneumonic or septic, occurring toward the end of any disease and often the cause of death. ... Synonym: agonal infection. ... (05 Mar 2000) ...

terminal jaw relation record
A record of the relationship of the mandible to the maxillae made at the vertical relation of occlusion and at the centric position. ... (05 Mar 2000) ...

terminal leukocytosis
One that occurs in a person just prior to death, especially in one who has a 'slow death.' ... Synonym: agonal leukocytosis. ... (05 Mar 2000) ...

terminal line
Synonym for linea terminalis ... An oblique ridge on the inner surface of the ilium and continued on the pubis, which forms the lower boundary of the iliac fossa; it separates the true from the false pelvis. ... Synonym: iliopectineal line, terminal line. ... (05 Mar 2000) ...

terminal nerve corpuscles
Generic term denoting specialised encapsulated nerve endings such as the articular, bulboid, genital, lamellated, and tactile corpuscles, and the tactile meniscus. ... Synonym: corpuscula nervosa terminalia. ... (05 Mar 2000) ...

terminal nerves
Synonym for nervi terminales ... Delicate plexiform nerve strands passing parallel and medial to the olfactory tracts, distributing peripherally with the olfactory nerves and passing centrally into the anterior perforated substance; they are considered to have an autonomic function but the exact nature of this is unknown. ... Synonym: terminal nerves …

terminal notch of auricle
A deep notch separating the lamina tragi and cartilage of the external auditory meatus from the main auricular cartilage, the two being connected below by the isthmus. ... Synonym: incisura terminalis auris, auricular notch. ... (05 Mar 2000) ...

terminal nuclei
Nuclei terminales, collective term indicating those nerve cell groups in the rhombencephalon and spinal cord in which the afferent fibres of the spinal and cranial nerves terminate. ... Synonym: nuclei terminationis, secondary sensory nuclei. ... (05 Mar 2000) ...

terminal oxidation
Synonym for end oxidation ... <biochemistry> The last oxidation step in a catabolic pathway. ... Synonym: terminal oxidation. ... (05 Mar 2000) ...

terminal part
Synonym for pars terminalis ... See: middle cerebral artery, posterior cerebral artery. ... Synonym: terminal part. ... (05 Mar 2000) ...

terminal plate
Synonym for lamina terminalis of cerebrum ... A thin plate passing upward from the optic chiasm and forming the rostral boundary of the third ventricle; membrane closing the rostral neuropore. ... Synonym: lamina terminalis cerebri, lamina cinerea, terminal plate, velum terminale. ... (05 Mar 2000) ...

terminal pneumonia
Pneumonia occurring in the course of some other disease near its fatal termination. ... (05 Mar 2000) ...

terminal redundancy
The condition in a viral chromosome in which identical genetic information occurs at each end of the chromosome. ... (05 Mar 2000) ...

terminal sinus
Sinus terminalis, the vein bounding the area vasculosa in the blastoderm. ... (05 Mar 2000) ...

terminal stria
A slender, compact fibre bundle that connects the amygdala (amygdaloid body) with the hypothalamus and other basal forebrain regions. Originating from the amygdala, the bundle passes first caudalward in the roof of the temporal horn of the lateral ventricle; it follows the medial side of the caudate nucleus forward in the floor of the ventricle's c …