|Medical Dictionary - Dictionary of Medicine and Human Biology|
Pertaining to trigonocephaly.
trigonocephaly (trig′o-no-sef′a-le, tri′go-no-)
Malformation characterized by a triangular configuration of the skull, due in part to premature synostosis of the cranial bones with compression of the cerebral hemispheres. [trigone + G. kephale, head]
trigonum, pl .trigona (tri-go′num, -na) [TA]
Any triangular area. See triangle. SYN: trigone (1) [TA] . [L., fr. G. trigonon, a triangle] t. auscultationis [TA] SYN: ausculatory triangle. t. caroticum [TA] SYN: carotid triangle. t. cerebrale SYN: fornix (2) . t. cervicale any one of the triangles of the neck. SYN: t. colli. t. cervicale anterius anterior cervical region. t. cervicale posterius lateral cervical region. t. clavipectorale [TA] SYN: clavipectoral triangle. t. collaterale [TA] SYN: collateral trigone. t. colli SYN: t. cervicale. t. colli anterius anterior cervical region. t. colli laterale lateral cervical region. t. cystohepaticum [TA] SYN: cystohepatic triangle. t. deltoideopectorale SYN: clavipectoral triangle. t. deltopectorale clavipectoral triangle. t. femorale [TA] SYN: femoral triangle. t. femoris femoral triangle. trigona fibrosa cordis right fibrous trigone (of heart), left fibrous trigone (of heart). t. fibrosum dextrum SYN: right fibrous trigone (of heart). t. fibrosum sinistrum SYN: left fibrous trigone (of heart). t. habenulae [TA] SYN: habenular trigone. t. hypoglossi SYN: hypoglossal trigone. t. inguinale [TA] SYN: inguinal triangle. t. lemnisci lateralis [TA] SYN trigone of lateral lemniscus. t. lumbale inferius [TA] SYN: inferior lumbar triangle. t. lumbocostale diaphragmatis [TA] SYN: lumbocostal triangle of diaphragm. t. musculare (regionis cervicalis anterioris) [TA] SYN: muscular triangle (of neck). t. nervi acustici SYN: trigone of auditory nerve. t. nervi hypoglossi [TA] SYN: hypoglossal trigone. t. nervi vagi [TA] SYN: vagal (nerve) trigone. t. olfactorium [TA] SYN: olfactory trigone. t. omoclaviculare [TA] SYN: supraclavicular triangle. t. omotracheale muscular triangle (of neck). t. palati SYN: palatal triangle. t. parietale laterale pelvis [TA] SYN: lateral pelvic wall triangle. t. retromolare [TA] SYN: retromolar triangle. t. sternocostale a muscular defect in the diaphragm between the costal and the sternal portions. SYN: Larrey cleft, sternocostal triangle. t. sternocostale diaphragmatis [TA] SYN: sternocostal triangle (of diaphragm). t. submandibulare [TA] SYN: submandibular triangle. t. submentale [TA] SYN: submental triangle. t. vagale vagal (nerve) trigone. t. ventriculi SYN: collateral trigone. t. vesicae [TA] SYN: trigone of bladder.
trihexyphenidyl hydrochloride (tri-heks′e-fen′i-dil)
A synthetic anticholinergic agent reputed to exert a higher degree of anticholinergic activity in the brain as compared with peripheral parasympathetic neuroeffector junctions. Widely used in the treatment of parkinsonism secondary to idiopathic or neuroleptic-induced parkinsonism.
The offspring of parents that differ in three mendelian characters. [tri- + L. hybrida, hybrid]
Denoting a chemical compound containing three replaceable hydrogen atoms.
A grossly malformed fetus with three heads, joined at the occiput, and a single body. [tri- + G. inion, nape of the neck, + didymos, twin]
triiodide (tri-i′o-did, -did)
An iodide with three atoms of iodine in the molecule; e.g., KI3.
3,5,3′-triiodothyronine (TITh, T3) (tri-i′o-do-thi′ro-nen)
A thyroid hormone normally synthesized in smaller quantities than thyroxine; present in blood and thyroid gland and exerts the same biologic effects as thyroxine but, on a molecular basis, is more potent and the onset of its effect is more rapid.
triketohydrindene hydrate (tri-ke-to-hi′drin-den)
Former name for ninhydrin.
SYN: uric acid.
A three-pronged forceps for removal of foreign bodies from the bladder. [tri- + G. labe, a handle, hold]
Having three laminae.
Having three sides.
trilobate, trilobed (tri-lo′bat, tri′lobd)
Having three lobes.
Having three cavities or cells.
A triad of related entities. [G. trilogia, fr. tri- + logos, study, discourse] t. of Fallot a set of congenital defects including pulmonic stenosis, atrial septal defect, and right ventricular hypertrophy. SYN: Fallot triad.
An adrenal steroid inhibitor used for amelioration of adrenal hyperfunction in Cushing syndrome.
Having three flagella, as observed in certain protozoan organisms. [tri- + G. mastix, whip]
trimeprazine tartrate (tri-mep′ra-zen)
A phenothiazine compound related chemically and pharmacologically to promazine but with a more pronounced histamine-antagonizing action; used for the symptomatic relief of pruritus.
A compound, complex, or structure made up of three components.
trimester (tri′mes-ter, tri-mes′ter)
A period of 3 months; one-third of the length of a pregnancy. [L. trimestris, of three-month duration]
trimetaphan camsylate (tri-met′a-fan)
SYN: trimethaphan camsylate.
A coronary vasodilator.
An obsolescent anticonvulsant used for the treatment of absence seizures (petit mal) and psychomotor epilepsy. SYN: troxidone.
trimethaphan camsylate (tri-meth′a-fan)
A ganglionic blocking agent that produces vasodilation of brief duration; used in surgery, particularly neurosurgery, to produce a relatively bloodless operative field (controlled hypotension). SYN: trimetaphan camsylate.
trimethidium methosulfate (tri-me-thid′e-um meth-o-sul′fat)
Quaternary ammonium compound that blocks ganglionic transmission at sympathetic and parasympathetic ganglia; used in the treatment of severe hypertension.
trimethobenzamide hydrochloride (tri′meth-o-ben′za-mid)
An antimicrobial agent that potentiates the effect of sulfonamides and sulfones; usually used in combination with sulfamethoxazole.
A drug combination consisting of a dihydrofolate reductase inhibitor (trimethoprim) and a sulfonamide antibacterial drug (sulfamethoxazole). The drug combination is synergistic as the drugs interfere with two successive steps in the formation/utilization of folic acid by microorganisms. Used to treat many infectious diseases.
A degradation product, often by putrefaction, of nitrogenous plant and animal substances such as beet sugar residue or herring brine; in the body, it probably results from decomposition of choline.
Increased excretion of trimethylamine in urine and sweat, with characteristic offensive fishy body odor.
Tertiary butyl alcohol. See butyl alcohol.
An antineoplastic agent.
An antianxiety agent.
An antineoplastic agent and antiprotozoal orphan drug used in the treatment of Pneumocystis carinii pneumonia in AIDS patients.
Existence under three forms, as in holometabolous insects that pass through larval, pupal, and imago stages. [tri- + G. morphe, form]
Existing under three forms; marked by trimorphism. SYN: trimorphic.
A constituent of soluble guncotton; used in the preparation of collodion and of pyroxylin.
trinitrotoluene (TNT) (tri′ni-tro-tol′u-en)
An explosive made by the nitrification of toluene; it causes gastric and intestinal disturbances and dermatitis in workers in munition factories. SYN: trinitrotoluol.
A combination of three adjacent nucleotides, free or in a polynucleotide or nucleic acid molecule; often used with specific reference to the unit (codon or anticodon) specifying a particular amino acid in expression of the genetic code.
A phosphotransferase catalyzing the phosphorylation of d-glyceraldehyde by ATP to produce d-glyceraldehyde 3-phosphate and ADP; participates in a step in d-fructose metabolism. SYN: triosekinase.
A compound containing three hydroxyl groups; E.G., glycerol.
Conjoined twins with union in the facial region such that there is a common eye on the joined sides; a variety of opodidymus. See conjoined twins, under twin. [tri- + G. ophthalmos, eye]
Condition of having three testes.
triorthocresyl phosphate (TOCP) (tri′-or-tho-kres′il)
A triaryl phosphate; produces a delayed neurotoxicity. An infamous incident occurred when it appeared as an adulterant in Jamaica ginger and was responsible for thousands of cases of paralysis during the Prohibition era.
A three-carbon monosaccharide; e.g., glyceraldehyde and dihydroxyacetone.
triosephosphate isomerase (tri′os-fos′fat)
An isomerizing enzyme that catalyzes the reversible interconversion of d-glyceraldehyde 3-phosphate and dihydroxyacetone phosphate, a reaction of importance in glycolysis and gluconeogenesis; a deficiency of this enzyme will result in hemolytic anemia and severe neurologic deficits. SYN: phosphotriose isomerase.
Diprosopus in which three ears are present. [tri- + G. ous, ear]
A molecule containing three atoms of oxygen. SYN: teroxide.
An orally effective pigmenting, photosensitizing agent; used as a tanning agent and in the treatment of vitiligo.
Formerly used as inhibitor of cholesterol biosynthesis but withdrawn from the market because it promoted the formation of cataracts.
tripelennamine hydrochloride (tri-pe-len′a-men)
An antihistamine. Also available, with the same actions, is t. citrate; it is less bitter than the hydrochloride salt, and is therefore used in elixir.
A class of enzymes of different specificities that catalyzes the hydrolysis of tripeptides, producing a dipeptide and an amino acid.
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