| prothrombin test | A quantitative test for prothrombin in the blood based on the clotting time of oxalated blood plasma in the presence of thromboplastin and calcium chloride; measures the integrity of the extrinsic and common pathways of coagulation. See: prothrombin time. Synonym: Quick's method, Quick's test. (05 Mar 2000) |
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| prothrombin time | Measurement of clotting time of plasma recalcified in the presence of excess tissue thromboplastin. Factors measured are fibrinogen, prothrombin, and factors v, vii, and x. It is used for monitoring anticoagulant therapy with coumarins. (12 Dec 1998) |
| prothrombinase | <chemical> Storage-stable glycoprotein blood coagulation factor that can be activated to factor xa by both the intrinsic and extrinsic pathways. A deficiency of factor x, sometimes called stuart-prower factor deficiency, may lead to a systemic coagulation disorder. Chemical name: Blood-coagulation factor X (12 Dec 1998) |
| prothrombinogen | <chemical> Heat- and storage-stable plasma protein that is activated by tissue thromboplastin to form factor viia in the extrinsic pathway of blood coagulation. The activated form then catalyses the activation of factor x to factor xa. Chemical name: Blood-coagulation factor VII (12 Dec 1998) |
| prothrombinopenia | <haematology> A congenital or acquired disorder of blood clotting where there is a deficiency of factor II (prothrombin), one of 20 necessary plasma proteins for normal blood coagulation. Acquired factor II deficiency may result from vitamin K deficiency, severe liver disease and anticoagulant drugs. Symptoms include abnormal bleeding, nosebleeds, abnormal menstrual bleeding, easy bruising and umbilical cord bleeding at birth. Treatment involves the infusion of fresh frozen plasma. Vitamin K may be administered in select cases. (27 Sep 1997) |
| prothrombokinase | factor V, factor VIII |
| prothyalosoma | <cell biology> The investing portion, or spherical envelope, surrounding the eccentric germinal spot of the germinal vesicle. (06 Mar 1998) |
| prothyalosome | <biology> Same as Prothyalosoma. Source: Websters Dictionary (01 Mar 1998) |
| prothymia | Rarely used term for mental alertness. Origin: G. Eagerness, fr. Pro, before, + thymos, mind (05 Mar 2000) |
| protide | An obsolete term for protein. (05 Mar 2000) |
| protirelin | <chemical> A tripeptide hormone that originates in the hypothalamus and stimulates the secretion of thyrotropin from the pituitary gland. In humans, it also acts as a prolactin-releasing factor. It is also a neurotransmitter in the central nervous system. Chemical name: L-Prolinamide, 5-oxo-L-prolyl-L-histidyl- (12 Dec 1998) |
| protist | A member of the Protista. (09 Oct 1997) |
| Protista | <biology> The kingdom of eukaryotic unicellular organisms. It includes the Protozoa, unicellular eukaryotic algae and some fungi (myxomycetes, acrasiales and oomycetes). (18 Nov 1997) |
| protistologist | An obsolete term for microbiologist. (05 Mar 2000) |
| protistology | An obsolete term for microbiology. Origin: G. Protistos, first, + logos, study (05 Mar 2000) |
Synonyms : Protein-Tyrosine Kinase, Tyrosine Kinase, Tyrosine Protein Kinases, Tyrosine-Specific Protein Kinases, Tyrosylprotein Kinase, Kinase, Protein-Tyrosine, Kinase, Tyrosine, Kinase, Tyrosine Protein, Kinase, Tyrosine-Specific Protein, Kinase, Tyrosylprotein
Synonyms : PTPase 1B, Phosphotyrosyl Histone Phosphatase, Phosphotyrosyl Protein Phosphatase, Protein-Tyrosine Phosphatase, Histone Phosphatase, Phosphotyrosyl, Phosphatase, Phosphotyrosine, Phosphatase, Phosphotyrosyl Histone, Phosphatase, Phosphotyrosyl Protein
Synonyms : Peptidase Inhibitory Peptides, Secretory, Peptidase Inhibitory Proteins, Secretory, Protease Inhibitory Peptides, Secretory, Protease Inhibitory Proteins, Secretory, Elastase Inhibitors, Neutrophil, Inhibitors, Neutrophil Elastase
Synonyms : Protein Gene Products, Proteins, Gene
Synonyms : Proteinurias
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| Protococcidiida |
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| protocone |
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| protoconid |
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| protocooperation |
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| prot | any of diverse minute acellular or unicellular organisms usually nonphotosynthetic |
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| prot | lengthen in time |
| prot | relatively long in duration |
| prot | in a slow, leisurely or prolonged way |
| prot | able to be extended |
| prot | able to be extended |
| prot | the act of prolonging something |
| prot | the consequence of being lengthened in duration |
| prot | drafting instrument used to draw or measure angles |
| prot | tricyclic antidepressant used to treat clinical depression |
| prot | trade name of a synthetic human growth hormone given to children deficient in the hormone |
| prot | swell or protrude outwards |