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

trophoblastic operculum
The mushroom-shaped plug of fibrin that fills the aperture in the endometrium made by the implanting ovum. ... (05 Mar 2000) ...

trophoblastic tumour
<oncology, tumour> A malignant and rapidly growing tumour which arises from foetal tissue. The preceding factor is a hydatidiform mole. ... Symptoms include continued vaginal bleeding in a women with a recent history of hydatidiform mole, abortion or term pregnancy. ... (27 Sep 1997) ...

trophoblastoma
<tumour> Obsolete term for choriocarcinoma. ... (05 Mar 2000) ...

trophochromatin
Synonym: trophochromidia. ... Origin: tropho-+ G. Chroma, colour ... (05 Mar 2000) ...

trophochromidia
Nongerminal or vegetative extranuclear masses of chromatin, found in certain protozoan forms; e.g., the macronucleus of certain ciliates, such as Paramecium. ... Synonym: trophochromatin. ... (05 Mar 2000) ...

trophocyte
A cell that supplies nourishment; e.g., Sertoli cells in the seminiferous tubules. ... Synonym: trephocyte. ... Origin: tropho-+ G. Kytos, cell ... (05 Mar 2000) ...

trophoderm
The trophectoderm, or trophoblast, together with the vascular mesodermal layer underlying it. ... See: serosa. ... Origin: tropho-+ G. Derma, skin ... (05 Mar 2000) ...

trophodermatoneurosis
Cutaneous trophic changes due to neural involvement. ... (05 Mar 2000) ...

trophodynamics
The dynamics of nutrition or metabolism. ... Synonym: nutritional energy. ... Origin: tropho-+ G. Dynamis, power ... (05 Mar 2000) ...

trophoneurosis
A trophic disorder, such as atrophy, hypertrophy, or a skin eruption, occurring as a consequence of disease or injury of the nerves of the part. ... Origin: tropho-+ G. Neuron, nerve, + -osis, condition ... (05 Mar 2000) ...

trophoneurotic
Relating to a trophoneurosis. ... (05 Mar 2000) ...

trophoneurotic atrophy
Abnormalities of the skin, hair, nails, subcutaneous tissues and bone, caused by peripheral nerve lesions. ... Synonym: neuritic atrophy, neurogenic atrophy, neurotrophic atrophy, trophic changes. ... (05 Mar 2000) ...

trophoneurotic leprosy
Synonym for anaesthetic leprosy ... A form of leprosy chiefly affecting the nerves, marked by hyperesthesia succeeded by anaesthesia, and by paralysis, ulceration, and various trophic disturbances, terminating in gangrene and mutilation. ... Synonym: Danielssen's disease, Danielssen-Boeck disease, dry leprosy, trophoneurotic leprosy. ... (05 Mar 2000) …

trophonucleus
Synonym for macronucleus ... The larger nucleus (or sometimes nuclei) in ciliate protozoans. Derived from the micronucleus by a process of DNA polytenisation. The DNA in the macronucleus is actively transcribed. The macronucleus degenerates before conjugation. ... (18 Nov 1997) ...

trophoplast
Synonym: plastid. ... Origin: tropho-+ G. Plastos, formed ... (05 Mar 2000) ...

trophospongia
1. Canalicular structures described by A.F. Holmgren in the protoplasm of certain cells. ... 2. Vascular endometrium of the uterus between the myometrium and the trophoblast. ... Origin: tropho-+ G. Spongia, a sponge ... (05 Mar 2000) ...

trophotaxis
Synonym: trophotropism. ... Origin: tropho-+ G. Taxis, arrangement ... (05 Mar 2000) ...

trophotropic
Relating to trophotropism. ... (05 Mar 2000) ...

trophotropic zone of Hess
An area in the hypothalamus concerned with rewarding bodily sensations. ... (05 Mar 2000) ...

trophotropism
Chemotaxis of living cells in relation to nutritive material; it may be positive (toward nutritive material) or negative (away from nutritive material). ... Synonym: trophotaxis. ... Origin: tropho-+ G. Trope, a turning ... (05 Mar 2000) ...

trophozoite
<biology, microbiology> The feeding stage of a protozoan (as distinct from reproductive or encysted stages). ... (18 Nov 1997) ...

tropia
Abnormal deviation of the eye. ... See: strabismus. ... Origin: G. Trope, a turning ... (05 Mar 2000) ...

tropic
1. <suffix> A turning toward, having an affinity for. ... Compare: -trophic. ... Origin: G. Trope, a turning ... 2. <chemistry> Of, pertaining to, or designating, an acid obtained from atropine and certain other alkaloids, as a white crystalline substance slightly soluble in water. ... 3. <astronomy> One of the two small circles of th …

tropic acid
<chemical> A constituent of atropine and of scopolamine, in which it is esterified through its COOH to the 3-CHOH of tropine. ... Chemical name: alpha-phenylhydracrylic acid; 2-phenyl-3-hydroxypropionic acid ... Structure: HOCH2CH(C6H5)COOH ... Synonym: tropaic acid, tropeic acid. ... (05 Mar 2000) ...

tropic acid dehydrogenase
<enzyme> Catalyses nad-dependent conversion of tropic acid to phenylacetaldehyde via oxidative decarboxylation; isolated from pseudomonas ... Registry number: EC 1.1.1.- ... (26 Jun 1999) ...

tropic hormone
<endocrinology> A peptide hormone that stimulates a specific target gland to secrete adifferent set of hormones. ... (09 Oct 1997) ...

tropic hormones
Trophic hormones, those hormone's of the anterior lobe of the pituitary that affect the growth, nutrition, or function of other endocrine glands. ... (05 Mar 2000) ...

tropical
1. Of or pertaining to the tropics; characteristic of, or incident to, the tropics; being within the tropics; as, tropical climate; tropical latitudes; tropical heat; tropical diseases. ... 2. [From Trope] Rhetorically changed from its exact original sense; being of the nature of a trope; figurative; metaphorical. 'The foundation of all parables is …

tropical abscess
Synonym for amoebic abscess ... <gastroenterology> An area of abscess formation (liquefaction necrosis) in the liver due to infection of the organ with amoebae. ... See: amoebiasis. ... (05 Feb 1998) ...

tropical acne
<dermatology> A severe type of acne of the entire trunk, shoulders, upper arms, buttocks, and thighs; occurs in hot, humid climates. ... (05 Mar 2000) ...

tropical anaemia
Various syndromes frequently observed in persons in tropical climates, usually resulting from nutritional deficiencies or hookworm or other parasitic diseases. ... (05 Mar 2000) ...

tropical boil
<dermatology> The lesion occurring in cutaneous leishmaniasis. ... (05 Mar 2000) ...

tropical bubo
Synonym for venereal lymphogranuloma ... A venereal infection usually caused by Chlamydia trachomatis, and characterised by a transient genital ulcer and inguinal adenopathy in the male; in the female, perirectal lymph nodes are involved and rectal stricture is a common occurrence. ... Synonym: climatic bubo, Favre-Durand-Nicholas disease, lymphogran …

tropical canine pancytopenia
Synonym for canine ehrlichiosis ... A fatal disease of dogs in Asia, Africa, and the U.S. Caused by Ehrlichia canis, transmitted by the tick Rhipicephalus sanguineus, and characterised by haemorrhage, pancytopenia, and emaciation. ... Synonym: tropical canine pancytopenia. ... (05 Mar 2000) ...

tropical climate
<geography> A climate which is typical of equatorial and tropical regions, i.e., one with continually high temperatures with considerable precipitation, at least during part of the year. ... (12 Dec 1998) ...

tropical diarrhoea
tropical sprue ...

tropical diseases
<microbiology> Infectious and parasitic diseases endemic in tropical and subtropical zones, including Chagas' disease, leishmaniasis, leprosy, malaria, onchocerciasis, schistosomiasis, sleeping sickness, yellow fever, and others; often water-or insect-borne. ... See: emerging viruses. ... (05 Mar 2000) ...

tropical eczema
<dermatology> Eczema occurring in plaques on extensors of the extremities; of common occurrence and unknown aetiology. ... (05 Mar 2000) ...

tropical eosinophilia
<chest medicine, infectious disease> Eosinophilia associated with cough and asthma, caused by occult filarial infection without evidence of microfilaraemia, occurring most frequently in India and Southeast Asia. ... (05 Mar 2000) ...

tropical mask
Synonym for chloasma bronzinum ... A bronze-coloured pigmentation, probably produced by hormone imbalance, occurring in gradually increasing areas on the face, neck, and chest in persons exposed continuously to the tropical sun; similar to chloasma of the temperate zone, but intensified because of strong sunlight. ... Synonym: tropical mask. ... (05 M …

tropical measles
<infectious disease, virology> A disease of uncertain character, somewhat resembling rubella, occurring in southern China. ... (05 Mar 2000) ...

tropical medicine
<study> The branch of medicine concerned with diseases, mainly of parasitic origin, common in tropical and subtropical regions. ... (12 Dec 1998) ...

tropical myositis
Synonym for myositis purulenta tropica ... A disease observed in Samoa and in tropical Africa, marked by pains in the extremities, fever of a remittent or intermittent type, and abscesses in the muscles in various parts of the body (may result in death from sepsis); causative organisms are Staphylococcus aureus and Streptococcus pyogenes, but usuall …

tropical pyomyositis
Synonym for myositis purulenta tropica ... A disease observed in Samoa and in tropical Africa, marked by pains in the extremities, fever of a remittent or intermittent type, and abscesses in the muscles in various parts of the body (may result in death from sepsis); causative organisms are Staphylococcus aureus and Streptococcus pyogenes, but usuall …

tropical sore
Synonym for cutaneous leishmaniasis ... Infection with promastigotes (leptomonads) of Leishmania tropica and of leishmaniasis major inoculated into the skin by the bite of an infected sandfly, Phlebotomus (commonly P. Papatasi); it is endemic in parts of Asia Minor, northern Africa, and India, and is known by innumerable names, each indicating its l …

tropical splenomegaly
Synonym for visceral leishmaniasis ... A chronic disease, occurring in India, Assam, China, the area formerly known as the Mediterranean littoral areas, the Middle East, India, Pakistan, China, South and Central America, Asia, Africa caused by Leishmania donovani and transmitted by the bite of an appropriate species of sandfly of the genus Phlebotom …

tropical splenomegaly syndrome
Synonym for hyperreactive malarious splenomegaly ... A syndrome characterised by persistent splenomegaly, exceptionally high serum IgM and malaria antibody levels, and hepatic sinusoidal lymphocytosis; believed to be a disturbance in the T-lymphocyte control of the humoral response to recurrent malaria. ... Synonym: tropical splenomegaly syndrome. …

tropical typhus
See Typhus, scrub. ... (12 Dec 1998) ...

tropical ulcer
The lesion occurring in cutaneous leishmaniasis, tropical phagedenic ulceration caused by a variety of microorganisms, including mycobacteria; common in northern Nigeria. ... Synonym: tropical sore. ... (05 Mar 2000) ...

tropicamide
<chemical> A muscarinic antagonist with pharmacologic action similar to atropine and used mainly as an ophthalmic parasympatholytic or mydriatic. It may cause closed-angle glaucoma. ... Pharmacological action: muscarinic antagonists, mydriatics, parasympatholytics. ... Chemical name: Benzeneacetamide, N-ethyl-alpha-(hydroxymethyl)-N-(4-pyridiny …

tropine dehydrogenase
<enzyme> A stereospecific reductase; catalyses the reduction of tropinone to tropine (tropan-3alpha-ol); shares 64% amino acid sequence identity with tropinone reductase II, the pseudotropine-forming reductase ... Registry number: EC 1.1.1.206 ... Synonym: tropine-forming reductase, tropinone reductase i ... (26 Jun 1999) ...

tropine tropate
Synonym for atropine ... <drug> A toxic alkaloid extracted from belladonna and other members of thenightshade family, it is typically used to dilate the eye and to stopmuscular spasms. ... Pharmacologic action: Parasympatholytic. Competitive blockade of acetylcholine at muscarinic receptors. Increases sinus node automaticity and AV conduction.< …

tropinone reductase
<enzyme> A stereospecific reductase; reduces tropinone to pseudotropine (tropan-3beta-ol); belongs to the NADPH-dependent, class b oxidoreductases; see also the stereospecifically opposite tropinone reductase I (tropine-forming reductase) ... Registry number: EC 1.1.1.236 ... Synonym: tropinone reductase II, pseudotropine-forming reductase ... ( …

tropism
<biology> The movement of an organism in response to an external source of stimulus, usually toward or away from it. ... Examples of stimuli are light, heat, food, or chemicals. ... (09 Oct 1997) ...

tropocollagen
<protein> Subunit from which collagen fibrils self assemble: generated from procollagen by proteolytic cleavage of the extension peptides. ... (18 Nov 1997) ...

tropoelastin
A salt-soluble precursor of elastin. Lysyl oxidase is instrumental in converting it to elastin in connective tissue. ... (12 Dec 1998) ...

tropolone
<chemical> 2-hydroxy-2,4,6-cycloheptatrien-1-one. ... Chemical name: 2,4,6-Cycloheptatrien-1-one, 2-hydroxy- ... (12 Dec 1998) ...

tropometer
Any instrument for measuring the degree of rotation or torsion, as of the eyeball or the shaft of a long bone. ... Origin: G. Trope, a turning, + metron, measure ... (05 Mar 2000) ...

tropomodulin
<protein> Tropomyosin binding protein that weakens tropomyosin actin interaction. Found in erythrocyte membrane skeleton and in various nonerythroid cells. Kreis & Vale 1993 ... (18 Nov 1997) ...

tropomyosin
<protein> Protein (66 kD) associated with actin filaments both in cytoplasm and (in association with troponin) in the thin filament of striated muscle. ... Composed of two elongated _ helical chains (each about 33 kD), 40 nm long, 2 nm diameter. Each chain has six or seven similar domains and interacts with as many G actin molecules as there a …

tropomyosin kinase
<enzyme> From chick embryo; requires mg; ca and cyclic AMP not needed ... Registry number: EC 2.7.1.132 ... (26 Jun 1999) ...

troponin
<protein> Complex of three proteins, Troponins C, I, & T, associated with tropomyosin and actin on the thin filament of striated muscle, upon which it confers calcium sensitivity. There is one troponin complex per tropomyosin. Troponin C (18 kD) binds calcium ions reversibly, has a variable number of EF hand motifs and is the least variab …

troponin c
One of the three polypeptide chains that make up the troponin complex. It is a calcium-binding protein. ... (12 Dec 1998) ...

troponin I
One of the three polypeptide chains that make up the troponin complex. It is an inhibitory protein that binds to actin. ... (12 Dec 1998) ...

troponin phosphatase
<enzyme> Dephosphorylates serine 20-phosphate of the inhibitor subunit tn-1, of cardiac troponin ... Registry number: EC 3.1.3.- ... (26 Jun 1999) ...

trot
1. The pace of a horse or other quadruped, more rapid than a walk, but of various degrees of swiftness, in which one fore foot and the hind foot of the opposite side are lifted at the same time. 'The limbs move diagonally in pairs in the trot.' ... 2. A jogging pace, as of a person hurrying. ... 3. One who trots; a child; a woman. 'An old trot with n …

trou-de-loup
A pit in the form of an inverted cone or pyramid, constructed as an obstacle to the approach of an enemy, and having a pointed stake in the middle. The pits are called also trapholes. ... Origin: F. Trou = hole, de = of, loup = wolf. ... (28 Oct 1998) ...

troubadour
One of a school of poets who flourished from the eleventh to the thirteenth century, principally in Provence, in the south of France, and also in the north of Italy. They invented, and especially cultivated, a kind of lyrical poetry characterised by intricacy of meter and rhyme, and usually of a romantic, amatory strain. ... Origin: F. Troubadour, f …

trouble
1. To put into confused motion; to disturb; to agitate. 'An angel went down at a certain season into the pool, and troubled the water.' (John v. 4) 'God looking forth will trouble all his host.' (Milton) ... 2. To disturb; to perplex; to afflict; to distress; to grieve; to fret; to annoy; to vex. 'Now is my soul troubled.' (John xii. 27) 'Take the b …

trough
1. A long, hollow vessel, generally for holding water or other liquid, especially one formed by excavating a log longitudinally on one side; a long tray; also, a wooden channel for conveying water, as to a mill wheel. ... 2. Any channel, receptacle, or depression, of a long and narrow shape; as, trough between two ridges, etc. Trough gutter, a recta …

Trousseau
Armand, French physician, 1801-1867. ... See: Trousseau's point, Trousseau's sign, Trousseau's spot, Trousseau's syndrome, Trousseau-Lallemand bodies. ... (05 Mar 2000) ...

Trousseau-Lallemand bodies
Synonym for Lallemand's bodies ... Old term for small gelatinoid concretions sometimes observed in seminal fluid, old term for Bence Jones cylinders. ... Synonym: Trousseau-Lallemand bodies. ... (05 Mar 2000) ...

Trousseau's point
A painful point, in neuralgia, at the spinous process of the vertebra below which arises the offending nerve. ... Synonym: apophysary point, apophysial point. ... (05 Mar 2000) ...

Trousseau's sign
<clinical sign> In latent tetany, the occurrence of carpopedal spasm accompanied by paresthesia elicited when the upper arm is compressed, as by a tourniquet or a blood pressure cuff. ... (05 Mar 2000) ...

Trousseau's spot
Synonym for meningitic streak ... A line of redness resulting from drawing a point across the skin, especially notable in cases of meningitis. ... Synonym: tache cerebrale, tache meningeale, Trousseau's spot. ... (05 Mar 2000) ...

Trousseau's syndrome
<syndrome> Thrombophlebitis migrans associated with visceral cancer. ... (05 Mar 2000) ...

trout
1. <zoology> Any one of numerous species of fishes belonging to Salmo, Salvelinus, and allied genera of the family Salmonidae. They are highly esteemed as game fishes and for the quality of their flesh. All the species breed in fresh water, but after spawning many of them descend to the sea if they have an opportunity. ... The most important E …

trowel
1. A mason's tool, used in spreading and dressing mortar, and breaking bricks to shape them. ... 2. A gardener's tool, somewhat like a scoop, used in taking up plants, stirring the earth, etc. ... 3. A tool used for smoothing a mold. Trowel bayonet. See Spade bayonet, under Spade. Fish trowel. See Fish slice. ... Origin: OE. Truel, OF. Truele, F. True …

troxerutin
7,3',4'-Tris[O-(2-hydroxyethyl)]rutin;used for treatment of venous disorders. ... (05 Mar 2000) ...

troxidone
Synonym for trimethadione ... <chemical> An anticonvulsant effective in absence seizures, but generally reserved for refractory cases because of its toxicity. ... Pharmacological action: anticonvulsants. ... Chemical name: 2,4-Oxazolidinedione, 3,5,5-trimethyl- ... (12 Dec 1998) ...

troy
<unit> Troy weight, the weight which gold and silver, jewels, and the like, are weighed. It was so named from Troyes, in France, where it was first adopted in Europe. ... The troy ounce is supposed to have been brought from Cairo during the crusades. In this weight the pound is divided into 12 ounces, the ounce into 20 pennyweights, and the pe …

Trp
Symbol for tryptophan and its radicals. ... (05 Mar 2000) ...

truck
1. A small wheel, as of a vehicle; specifically, a small strong wheel, as of wood or iron, for a gun carriage. ... 2. A low, wheeled vehicle or barrow for carrying goods, stone, and other heavy articles. 'Goods were conveyed about the town almost exclusively in trucks drawn by dogs.' (Macaulay) ... 3. <machinery> A swiveling carriage, consistin …

true aneurysm
Localised dilation of an artery with an expanded lumen lined by stretched remnants of the arterial wall. ... (05 Mar 2000) ...

true cementoma
Synonym for cementoblastoma ... <tumour> A benign odontogenic tumour of functional cementoblasts; it appears as a mixed radiolucent-radiopaque lesion attached to a tooth root and may cause expansion of the bone cortex or be associated with pain. ... Synonym: benign cementoblastoma, true cementoma. ... (05 Mar 2000) ...

true cholinesterase
Synonym for acetylcholinesterase ... <enzyme, neurology, physiology> An enzyme that breaks down unused acetylcholine in the synaptic cleft (the space between neurons), this enzyme is necessary to restore the synaptic cleft so it is ready to transmit the next nerve impulse. ... (06 May 1997) ...

true conjugate
Synonym for conjugate of pelvic inlet ... Distance from the promontory of the sacrum to the upper posterior edge of the pubic symphysis. ... Synonym: anteroposterior diameter of the pelvic inlet, conjugata vera, conjugate axis, conjugate diameter of pelvic inlet, diameter mediana, internal conjugate, true conjugate. ... (05 Mar 2000) ...

true diverticulum
A term denoting a diverticulum that includes all the layers of the wall from which it protrudes. ... (05 Mar 2000) ...

true dwarfism
Synonym for physiologic dwarfism ... Dwarfism characterised by normal development that is at a strikingly lesser rate than that for members of the same family, race, or other races. ... Synonym: primordial dwarfism, true dwarfism. ... (05 Mar 2000) ...

true glottis
Synonym for rima glottidis ... The interval between the true vocal cords. ... Synonym: glottis vera, rima vocalis, true glottis. ... (05 Mar 2000) ...

true hermaphroditism
Hermaphroditism in which both ovarian and testicular tissue are present. Somatic characteristics of both sexes are present; also called true intersex. ... (05 Mar 2000) ...

true hypertrophy
An increase in size involving all the different tissues composing the part. ... (05 Mar 2000) ...

true knot
True knot of umbilical cord, actual intertwining of a segment of umbilical cord; circulation is usually not obstructed. ... (05 Mar 2000) ...

true muscles of back
Synonym for deep muscles of back ... Muscles of the back innervated by the dorsal primary rami of spinal nerves; includes erector spinae, transversospinalis, interspinal, and intertransverse muscles; excludes the superficial back muscles which are appendicular and are innervated by ventral rami, and the trapezius, innervated by the spinal accessory …

true pelvis
Synonym for lesser pelvis ... The cavity of the pelvis below the brim or superior aperture. ... Synonym: pelvis minor, pelvis vera, small pelvis, true pelvis. ... (05 Mar 2000) ...

true ribs
Seven upper ribs on either side whose cartilages articulate directly with the sternum. ... Synonym: costae verae, vertebrosternal ribs. ... (05 Mar 2000) ...

true thirst
Thirst that can be satisfied by drinking water. ... (05 Mar 2000) ...

true vertebra
Any one of the cervical, thoracic, or lumbar vertebrae. ... Synonym: vertebra vera. ... (05 Mar 2000) ...

true vocal cord
Synonym for vocal fold ... One of Ferrein's cords; the sharp edge of a fold of mucous membrane overlying the vocal ligament and stretching along either wall of the larynx from the angle between the laminae of the thyroid cartilage to the vocal process of the arytenoid cartilage; the vocal folds are the agents concerned in voice production. ... Synony …

truelove
1. One really beloved. ... 2. <botany> A plant. See Paris. ... 3. An unexplained word occurring in Chaucer, meaning, perhaps, an aromatic sweetmeat for sweetening the breath. 'Under his tongue a truelove he bore.' (Chaucer) Truelove knot, a complicated, involved knot that does not readily untie; the emblem of interwoven affection or engagement; …