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


extracting forceps
Synonym for dental forceps ... <dentistry> Forceps used to luxate teeth and remove them from the alveolus. ... Synonym: extracting forceps. ... (05 Mar 2000) ...

extraction
The process or act of pulling or drawing out. ... Origin: L. Trahere = to draw ... (18 Nov 1997) ...

extraction and processing industry
The industry concerned with the removal of raw materials from the earth's crust and with their conversion into refined products. ... (12 Dec 1998) ...

extraction coefficient
The percentage of a substance removed from the blood or plasma in a single passage through a tissue; e.g., the extraction coefficient for p-aminohippuric acid (PAH) in the kidney is the difference between arterial and renal venous plasma PAH concentrations, divided by the arterial plasma PAH concentration. ... (05 Mar 2000) ...

extraction ratio
The fraction of a substance removed from the blood flowing through the kidney; it is calculated from the formula (A -V)/A, where A and V, respectively, are the concentrations of the substance in arterial and renal venous plasma. ... (05 Mar 2000) ...

extraction, obstetrical
Extraction of the foetus by means of obstetrical instruments. ... (12 Dec 1998) ...

extractive
1. Capable of being extracted. 'Thirty grains of extractive matter.' ... 2. Tending or serving to extract or draw out. 'Certain branches of industry are conveniently designated extractive: e.g, agriculture, pastoral and mining pursuits, cutting of lumber, etc.' (Cairnes) ... Origin: Cf. F. Extractif. ... 1. Anything extracted; an extract. 'Extractives …

extractives
Substances present in vegetable or animal tissue that can be separated by successive treatment with solvents and recovered by evaporation of the solution. ... (05 Mar 2000) ...

extracystic
Outside of, or unrelated to, the gallbladder or urinary bladder or any cystic tumour. ... (05 Mar 2000) ...

extradural
External (outside) to the dura mater. ... (16 Dec 1997) ...

extradural anaesthesia
Anaesthetization, by local anaesthetics, of nerves near the spinal canal external to the dura mater; often refers to epidural anaesthesia, but may include paravertebral anaesthesia. ... (05 Mar 2000) ...

extradural haematorrhachis
haematorrhachis externa ...

extradural haemorrhage
An accumulation of blood between the skull and the dura mater. ... Synonym: epidural haematoma. ... (05 Mar 2000) ...

extradural mass
<radiology> Disc, haematoma (traumatic fracture), metastasis (epidural, bony), abscess, neurofibroma, lipoma, arachnoid cyst ... (12 Dec 1998) ...

extraembryonic
Outside the embryonic body; e.g., those membranes involved with the embryo's protection and nutrition which are discarded at birth without being incorporated in its body. ... (05 Mar 2000) ...

extraembryonic blastoderm
That part of the blastoderm which is not incorporated in the embryo but forms membranes concerned in its nourishment and protection. ... (05 Mar 2000) ...

extraembryonic celom
That portion of the celom that extends beyond the confines of the embryonic body. ... (05 Mar 2000) ...

extraembryonic ectoderm
Derivative of epiblast outside the embryo's body. ... (05 Mar 2000) ...

extraembryonic membrane
Synonym for foetal membrane ... A structure or tissue that develops from the fertilised ovum but does not form part of the embryo proper. ... Synonym: embryonic membrane, extraembryonic membrane. ... (05 Mar 2000) ...

extraembryonic mesoderm
Extraembryonic ectoderm cells or tissues which, though derived from the zygote, are not part of the embryo proper and along with the extraembryonic mesoderm form the foetal membranes (e.g., amnion). ... Synonym: primary mesoderm. ... (05 Mar 2000) ...

extraepiphysial
Not relating to, or connected with, an epiphysis. ... (05 Mar 2000) ...

extragenital
Outside of, away from, or unrelated to, the genital organs. ... (05 Mar 2000) ...

extrahepatic
Outside of, or unrelated to, the liver. ... (05 Mar 2000) ...

extrajection
Attributing or projecting one's own psychic process to another person. ... Origin: L. Ex, out of, + jacio, to cast ... (05 Mar 2000) ...

extraligamentous
Outside of, or unconnected with, a ligament. ... (05 Mar 2000) ...

extralobar sequestration
<radiology> Accessory lung: lung tissue in its own pleura, left lower lobe (90%), systemic arterial AND venous connection (unlike intralobar) results in L to R shunt, associated with congenital anomalies of diaphragm: eventration, paralysis, ipsilateral hernia, XR: homogeneous ST mass, rarely infected see also: sequestration Cf: intralobar se …

extramalleolus
Synonym for lateral malleolus ... The process at the lateral side of the lower end of the fibula, forming the projection of the lateral part of the ankle; the lateral malleolus is more inferiorly placed then the medial malleolus. ... Synonym: malleolus lateralis, external malleolus, extramalleolus, outer malleolus. ... (05 Mar 2000) ...

extramammary Paget disease
An intraepidermal form of mucinous adenocarcinoma, most commonly in the anogenital region. ... Synonym: Paget's disease. ... (05 Mar 2000) ...

extramarital relations
Voluntary sexual intercourse between a married person and someone other than the spouse. ... (12 Dec 1998) ...

extramedullary
Outside of, or unrelated to, any medulla, especially the medulla oblongata. ... (05 Mar 2000) ...

extramembranous glomerulonephritis
<pathology> A kidney disease that occurs due to inflammation of the kidney glomerulus and its basement membrane. The exact cause is unknown but it appears to be related to the deposition of immune complexes in the basement membrane leading to thickening of the capillary walls. This disorder is a common cause of nephrotic syndrome an is usuall …

extramembranous pregnancy
A pregnancy in which during the course of gestation the foetus has broken through its envelopes, coming directly in contact with the uterine walls. ... (05 Mar 2000) ...

extramitochondrial
Outside of the mitochondria. ... (05 Mar 2000) ...

extramural
Outside, not in the substance of, the wall of a part. ... Origin: extra-+ L. Murus, wall ... (05 Mar 2000) ...

extramural practice
Delivery of health care services by university faculties or full-time hospital staff to persons beyond the physical confines of their respective medical centres. ... (05 Mar 2000) ...

extraneous
Outside of the organism and not belonging to it. ... Origin: L. Extraneus ... (05 Mar 2000) ...

extranuclear
Located outside, or not involving, a cell nucleus. ... (05 Mar 2000) ...

extranuclear inheritance
Synonym for cytoplasmic inheritance ... <genetics> Inheritance of parental characters through a nonchromosomal means, thus mitochondrial DNA is cytoplasmically inherited since the information is not segregated at mitosis. ... In a broader sense the organisation of a cell may be inherited through the continuity of structures from one generation …

extraocular muscles
The voluntary muscles which control eye movement ... (27 Sep 1997) ...

extraoral
<dentistry> Outside of the mouth. ... (08 Jan 1998) ...

extraoral anchorage
Anchorage in which the resistance unit is outside the oral cavity; e.g., cranial, occipital, or cervical anchorage. ... (05 Mar 2000) ...

extraoral fracture appliance
A device used for extraoral reduction and fixation of maxillary or mandibular fractures, in which pins, clamps, or screws interjoined with metal or acrylic connectors are used to align the fractured segments. ... See: external pin fixation. ... (05 Mar 2000) ...

extraoral photograph
<dentistry> Photographs of the face. ... (08 Jan 1998) ...

extraoral traction appliances
Extraoral devices for applying force to the dentition in order to avoid some of the problems in anchorage control met with in intermaxillary traction and to apply force in directions not otherwise possible. ... (12 Dec 1998) ...

extraordinary
1. Beyond or out of the common order or method; not usual, customary, regular, or ordinary; as, extraordinary evils; extraordinary remedies. 'Which dispose To something extraordinary my thoughts.' (Milton) ... 2. Exceeding the common degree, measure. Or condition; hence, remarkable; uncommon; rare; wonderful; as, extraordinary talents or grandeur.
extraovular
Outside the egg;existence after hatching from the egg, as in reptiles and birds. ... (05 Mar 2000) ...

extrapapillary
Unconnected with any papillary structure. ... (05 Mar 2000) ...

extraparenchymal
Unrelated to the parenchyma of an organ. ... (05 Mar 2000) ...

extraperineal
Not connected with the perineum. ... (05 Mar 2000) ...

extraperiosteal
Not connected with, or unrelated to, the periosteum. ... (05 Mar 2000) ...

extraperitoneal
Outside of the peritoneal cavity. ... (05 Mar 2000) ...

extraperitoneal fascia
The thin layer of fascia and adipose tissue between the peritoneum and fascia transversalis. ... Synonym: fascia subperitonealis, subperitoneal fascia. ... (05 Mar 2000) ...

extraphysiologic
Outside of the domain of physiology; more than physiologic, therefore pathologic. ... (05 Mar 2000) ...

extrapineal pinealoma
<tumour> Obsolete term for ectopic pinealoma. ... (05 Mar 2000) ...

extraplacental
Unrelated to the placenta. ... (05 Mar 2000) ...

extrapleural pneumothorax
The presence of a gas between the endothoracic fascia-pleural layer and the adjacent chest wall. ... (05 Mar 2000) ...

extraprostatic
Outside of, or independent of, the prostate. ... (05 Mar 2000) ...

extrapsychic
Denoting the psychological dynamics that occur in the mind in association with the individual's exchanges with other persons or events. ... Compare: intrapsychic. ... (05 Mar 2000) ...

extrapulmonary
Outside of, or having no relation to, the lungs. ... (05 Mar 2000) ...

extrapyramidal
Outside of the pyramidal tracts. ... (18 Nov 1997) ...

extrapyramidal cerebral palsy
Synonym for athetosis ... <neurology> A derangement marked by ceaseless occurrence of slow, sinuous, writhing movements, especially severe in the hands and performed involuntarily, it may occur after hemiplegia and is then known as posthemiplegic chorea. ... Synonym: mobile spasm. ... Origin: Gr. Athetos = not fixed ... (13 Nov 1997) ...

extrapyramidal disease
A general term for a number of disorders caused by abnormalities of the basal ganglia or certain brain stem or thalamic nuclei; characterised by motor deficits, loss of postural reflexes, bradykinesia, tremor, rigidity, and various involuntary movements. ... Synonym: extrapyramidal motor system disease. ... (05 Mar 2000) ...

extrapyramidal dyskinesias
Abnormal involuntary movements attributed to pathological states of one or more parts of the striate body and characterised by insuppressible, stereotyped, automatic movements that cease only during sleep; e.g., Parkinson's disease; chorea; athetosis; hemiballism. ... (05 Mar 2000) ...

extrapyramidal effect
A combination of neurologic effects which includes tremors, chorea, athetosis and dystonia. A common side effect of neuroleptic agents (phenothiazines). Other medications known to cause these reactions include haloperidol, molindone, perphenazine & amitriptyline, loxapine, pimozide and rarely, benzodiazepines. ... (27 Sep 1997) ...

extrapyramidal motor system
Literally: all of the brain structures affecting bodily (somatic) movement, excluding the motor neurons, the motor cortex, and the pyramidal (corticobulbar and corticospinal) tract. Despite its very wide literal connotation, the term is commonly used to denote in particular the striate body (basal ganglia), its associated structures (substantia nig …

extrapyramidal motor system disease
Synonym for extrapyramidal disease ... A general term for a number of disorders caused by abnormalities of the basal ganglia or certain brain stem or thalamic nuclei; characterised by motor deficits, loss of postural reflexes, bradykinesia, tremor, rigidity, and various involuntary movements. ... Synonym: extrapyramidal motor system disease. ... (05 M …

extrapyramidal syndrome
<syndrome> Abnormalities of movement related to injury of motor pathways other than the pyramidal tract. ... (05 Mar 2000) ...

extrarenal
Outside of the kidney. ... (18 Nov 1997) ...

extrasaccular hernia
Synonym for sliding hernia ... A hernia in which an abdominal viscus forms part of the sac. ... Synonym: extrasaccular hernia, parasaccular hernia, slipped hernia. ... (05 Mar 2000) ...

extrasensory
Outside or beyond the ordinary senses; not limited to the senses, as in extrasensory perception. ... (05 Mar 2000) ...

extrasensory perception
Perception by means other than through the ordinary senses; e.g., telepathy, clairvoyance, precognition. ... (05 Mar 2000) ...

extrasensory thought transference
Synonym for telepathy ... The knowledge or communication by one person with the mental processes of another through channels other than known physical or perceptual processes. ... (12 Dec 1998) ...

extraserous
Outside a serous cavity. ... (05 Mar 2000) ...

extrasomatic
Outside of, or unrelated to, the body. ... (05 Mar 2000) ...

extrasystole
A premature contraction of the heart that is independent of the normal rhythm and arises in response to an impulse in some part of the heart other than the sinoatrial node. ... Synonym: premature beat. ... (18 Nov 1997) ...

extratarsal
1. Outside, having no relation to, the tarsus. ... 2. On the outer side of the tarsus. ... (05 Mar 2000) ...

extraterrestrial environment
<astronomy> The environment outside the earth or its atmosphere. The environment may refer to a closed cabin (such as a space shuttle or space station) or to space itself, the moon, or other planets. ... (12 Dec 1998) ...

extrathyroidal hypermetabolism
<endocrinology> A state of increased metabolic rate with normal levels of thyroid hormone production. ... (05 Mar 2000) ...

extratracheal
<anatomy> Outside of the trachea. ... (05 Mar 2000) ...

extratubal
<anatomy> Outside of any tube, used specifically in relation to the auditory (eustachian) or uterine (fallopian) tubes. ... (05 Mar 2000) ...

extrauterine pregnancy
Synonym for ectopic pregnancy ... A gestation elsewhere than in the uterus. Often occurring in the fallopian tube. Presents with abdominal pain, fainting, and/or vaginal bleeding. ... (27 Sep 1997) ...

extravaginal
1. <anatomy> Outside the vagina. ... 2. <botany> Of a shoot, arising from an axillary bud which breaks through the sheath of the subtending leaf. ... (09 Oct 1997) ...

extravaginal torsion
<gynaecology> High torsion above insertion of tunica vaginalis. ... (05 Mar 2000) ...

extravasation
<physiology> A discharge or escape, as of blood, from a vessel into the tissues. ... Origin: L. Vas = vessel ... (18 Nov 1997) ...

extravasation cyst
An obsolete term for haemorrhagic cyst. ... (05 Mar 2000) ...

extravascular
Situated or occurring outside a vessel or the vessels. ... (18 Nov 1997) ...

extravascular fluid
All fluid outside the blood vessels, i.e., intracellular, interstitial, and transcellular fluid's; it constitutes about 48 to 58% of the body weight. ... (05 Mar 2000) ...

extravascular lung water
<physiology> Water present within the lungs; its volume is roughly equal to, or a little less than, the intracellular blood volume of the lungs. Accumulations of extravascular lung water result in pulmonary oedema. ... (12 Dec 1998) ...

extraventricular
<anatomy> Outside of any ventricle, especially of one of the ventricles of the heart. ... (05 Mar 2000) ...

extraversion
<psychology> A state in which attention is largely directed outward from the self. ... (12 Dec 1998) ...

extravert
Synonym for extrovert ... A gregarious person whose chief interests lie outside the self, and who is socially self-confident and involved in the affairs of others. ... Compare: introvert. ... Synonym: extravert. ... (05 Mar 2000) ...

extravisual
Outside the field of vision, or beyond the visible spectrum. ... (05 Mar 2000) ...

extravital ultraviolet
Having wavelengths of 2900 to 1850 A°. ... (05 Mar 2000) ...

extreme
As far away as possible from the centre, the beginning or the average, of the highest degree or intensity ... (18 Nov 1997) ...

extreme capsule
The layer of white matter separating the claustrum from the cortex of the insula, probably representing largely corticopetal and corticofugal fibres of the insular cortex. ... Synonym: capsula extrema. ... (05 Mar 2000) ...

extreme halophile
An organism whose growth is dependent on large amounts (generally more than 10% in solution) of salt (sodium chloride, NaCl). ... (09 Oct 1997) ...

extremital
Relating to an extremity. ... See: distal. ... (05 Mar 2000) ...

extremitas
Synonym: extremity. ... See: limb. ... Origin: L. Fr. Extremus, last, outermost ... (05 Mar 2000) ...

extremitas acromialis claviculae
Synonym for acromial extremity of clavicle ... The flattened lateral end of the clavicle that articulates with the acromion and is anchored to the coracoid process by the conoid and trapezoid ligaments. ... Synonym: extremitas acromialis claviculae, acromial end of clavicle. ... (05 Mar 2000) ...

extremitas anterior
Synonym for anterior extremity ... Specifically, the anterior end of the spleen (extremitas anterior splenis ). ... Synonym: extremitas anterior. ... (05 Mar 2000) ...