| threonine acetaldehyde-lyase | <enzyme> Catalyses conversion of threonine to glycine and acetaldehyde; do not confuse with threonine aldolase (EC 2.1.2.1) Registry number: EC 4.1.2.5 Synonym: l-threonine acetaldehyde-lyase, d-threonine acetaldehyde-lyase, threonine aldolase (lyase) (26 Jun 1999) |
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| threonine deaminase | <enzyme> A pyridoxal-phosphate protein that catalyses the deamination of threonine to 2-ketobutyrate and ammonia. The role of this enzyme can be biosynthetic or biodegradative. In the former role it supplies 2-ketobutyrate required for isoleucine biosynthesis, while in the latter it is only involved in the breakdown of threonine to supply energy. Chemical name: L-Threonine hydro-lyase (deaminating) Registry number: EC 4.2.1.16 (12 Dec 1998) |
| threonine dehydratase | <enzyme> A pyridoxal-phosphate protein that catalyses the deamination of threonine to 2-ketobutyrate and ammonia. The role of this enzyme can be biosynthetic or biodegradative. In the former role it supplies 2-ketobutyrate required for isoleucine biosynthesis, while in the latter it is only involved in the breakdown of threonine to supply energy. Chemical name: L-Threonine hydro-lyase (deaminating) Registry number: EC 4.2.1.16 (12 Dec 1998) |
| threonine permease | <chemical> Membrane-associated threonine permease encoded by tdcc gene of E coli Chemical name: permease, threonine Synonym: threonine-serine permease, tdcc gene product (26 Jun 1999) |
| threonine-trna ligase | <enzyme> An enzyme that activates threonine with its specific transfer RNA. Chemical name: L-Threonine:tRNA(Thr) ligase (AMP-forming) Registry number: EC 6.1.1.3 (12 Dec 1998) |
| threonyl tRNA synthetase kinase | <enzyme> From postribosomal supernatants of bom:nmri mouse liver; comigrates with threonyl trna synthetase during several purification steps Registry number: EC 2.7.1.- Synonym: thr trna synthetase kinase (26 Jun 1999) |
| threose | <biochemistry> A four carbon sugar in which the two central hydroxyl groups are in trans orientation (cis in erythrose). (18 Nov 1997) |
| threpsology | <study> The doctrine of nutrition; a treatise on nutrition. Origin: Gr. Nourishment. (04 Mar 1998) |
| thresher | 1. One who, or that which, thrashes grain; a thrashing machine. 2. <zoology> A large and voracious shark (Alopias vulpes), remarkable for the great length of the upper lobe of its tail, with which it beats, or thrashes, its prey. It is found both upon the American and the European coasts. Synonym: fox shark, sea ape, sea fox, slasher, swingle-tail, and thrasher shark. 3. <zoology> A name given to the brown thrush and other allied species. See Brown thrush. Sage thrasher. <zoology> The common killer of the Atlantic. Source: Websters Dictionary (01 Mar 1998) |
| thresher's lung | <chest medicine> Type III hypersensitivity response to Micropolyspora faeni, a thermophilic bacterium found in mouldy hay. (18 Nov 1997) |
| threshold | 1. The point at which a stimulus first produces a sensation. 2. The lower limit of perception of a stimulus. 3. The minimal stimulus that produces excitation of any structure; e.g., the minimal stimulus eliciting a motor response. Synonym: limen. Origin: A.S. Therxold (05 Mar 2000) |
| threshold body | Any material (e.g., glucose) that is excreted in the urine only when its plasma concentration exceeds a certain value, termed its threshold. Synonym: threshold body. (05 Mar 2000) |
| threshold differential | The smallest difference which can be discriminated between two stimuli or one which is barely above the threshold. (12 Dec 1998) |
| threshold limit value | The maximum concentration of a chemical recommended by the American Conference of Government Industrial Hygienists for repeated exposure without adverse health effects on workers. (05 Mar 2000) |
| threshold of consciousness | The lowest point at which a stimulus sensation can be perceived. (05 Mar 2000) |
Synonyms : Essential Thrombocythemia, Essential Thrombocythemias, Hemorrhagic Thrombocythemias, Idiopathic Thrombocythemia, Idiopathic Thrombocythemias, Primary Thrombocythemia, Primary Thrombocythemias, Thrombocythemias, Essential, Thrombocythemias, Hemorrhagic
Synonyms : Thrombocytopenias, Thrombopenias
Synonyms : Thrombocythemias, Thrombocytoses
Synonyms : Thromboembolisms
Synonyms : Therapeutic Thrombolysis, Therapy, Fibrinolytic, Therapy, Thrombolytic, Fibrinolytic Therapies, Therapeutic Thrombolyses, Therapies, Fibrinolytic, Therapies, Thrombolytic, Thrombolyses, Therapeutic, Thrombolytic Therapies
| throwback |
atavist: an organism that has the characteristics of a more primitive type of that organism atavistic: characteristic of an atavist atavism: a reappearance of an earlier characteristic
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| thrush |
candidiasis of the oral cavity; seen mostly in infants or debilitated adults a woman who sings popular songs songbirds characteristically having brownish upper plumage with a spotted breast
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| thrust |
push forcefully; "He thrust his chin forward" press or force; "Stuff money into an envelope"; "She thrust the letter into his hand" lunge: make a thrusting forward movement push: the force used in pushing; "the push of the water on the walls of the tank"; "the thrust of the jet engines" force: impose or thrust urgently, importunately, or inexorably; "She forced her diet fads on him" stab: a strong blow with a knife or other sharp pointed instrument; "one strong stab to the heart killed him" pierce: penetrate or cut through with a sharp instrument force (molten rock) into pre-existing rock drive: the act of applying force to propel something; "after reaching the desired velocity the drive is cut off" push upward; "The front of the trains that had collided head-on thrust up into the air" verbal criticism; "he enlivened his editorials with barbed thrusts at politicians" throw: place or put with great energy; "She threw the blanket around the child"; "thrust the money in the hands of the beggar" jab: a sharp hand gesture (resembling a blow); "he warned me with a jab with his finger"; "he made a thrusting motion with his fist"
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| threshold |
the starting point for a new state or experience; "on the threshold of manhood" the smallest detectable sensation doorway: the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close; "he stuck his head in the doorway" doorsill: the sill of a door; a horizontal piece of wood or stone that forms the bottom of a doorway and offers support when passing through a doorway brink: a region marking a boundary
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| thrifty |
careful and diligent in the use of resources careful: mindful of the future in spending money; "careful with money"
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| THR | the raised helical rib going around a screw |
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| THR | a fine cord of twisted fibers (of cotton or silk or wool or nylon etc.) used in sewing and weaving |
| THR | the connections that link the various parts of an event or argument together |
| THR | any long object resembling a thin line |
| THR | thread on or as if on a string |
| THR | pass a thread through |
| THR | to move or cause to move in a sinuous, spiral, or circular course |
| THR | a disease of tropical woody plants(cocoa or tea or citrus) |
| THR | someone who spins (who twists fibers into threads) |
| THR | repeated too often |
| THR | having the nap worn away so that the threads show through |
| THR | (of bolts or screws) having screw threads |