| proteus vulgaris | A species of gram-negative, facultatively anaerobic, rod-shaped bacteria that occurs in soil, faecal matter, and sewage. It is an opportunistic pathogen and causes cystitis and pyelonephritis. (12 Dec 1998) |
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| prothallium | Origin: NL. <botany> Same as Prothallus. Source: Websters Dictionary (01 Mar 1998) |
| prothallus | A gametophyte body, especially in ferns and related plants. (09 Oct 1997) |
| prothesis | 1. A credence table; so called by the Eastern or Greek Church. 2. <medicine> See Prosthesis. Origin: NL, fr. Gr. A placing in public, fr. To set before; before + to set, put. Source: Websters Dictionary (01 Mar 1998) |
| prothionamide | <chemical> 2-propylthioisonicotinamide. Antitubercular agent similar in action and side effects to ethionamide. It is used mostly in combination with other agents. Pharmacological action: antitubercular agents. Chemical name: 4-Pyridinecarbothioamide, 2-propyl- (12 Dec 1998) |
| prothipendyl | 10-(3-Dimethylaminopropyl)-10H-pyrido-[3,2-b][1,4]benzothiazine;an antipsychotic. (05 Mar 2000) |
| prothoracic | <zoology> Of or pertaining to the prothorax. Source: Websters Dictionary (01 Mar 1998) |
| prothoracic glands | <entomology> Insect structures that originate from the ectoderm of the ventrocaudal part of the head and serve as a source of ecdysone. Synonym: peritracheal glands, prothoracic glands, thoracic glands, ventral glands. (05 Mar 2000) |
| prothorax | <zoology> The first or anterior segment of the thorax in insects. Origin: Pref. Pro- + thorax. Source: Websters Dictionary (01 Mar 1998) |
| prothrobin | A coagulation factor needed for the normal clotting of blood. In the cascade of events leading to the final clot, prothrombin precedes thrombin (and so is a precursor to thrombin). Also called thrombinogen. Prothrombin time: a clotting test, a test done to test the integrity of part of the clotting scheme. Familiarly called the pro time, the test is the time needed for clot formation after a substance called thromboplastin (+ calcium) has been added to plasma. (12 Dec 1998) |
| prothrombase | See: factor X. (05 Mar 2000) |
| prothrombin | Clotting Factor II. Origin: Gr. Thrombos = cloth in (18 Nov 1997) |
| prothrombin accelerator | <chemical> Heat- and storage-labile plasma glycoprotein which accelerates the conversion of prothrombin to thrombin in blood coagulation. Factor v accomplishes this by forming a complex with factor xa, phospholipid, and calcium (prothrombinase complex). Deficiency of factor v leads to owren's disease. Chemical name: Blood-coagulation factor V (12 Dec 1998) |
| prothrombin and proconvertin test | A test formerly used by some to control anticoagulant therapy with bishydroxycoumarin and indandione drugs. Synonym: P and P test. (05 Mar 2000) |
| prothrombin deficiency | 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) |