| prosencephalic | <anatomy> Of or pertaining to the prosencephalon. Source: Websters Dictionary (01 Mar 1998) |
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| prosencephalon | <anatomy> The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain. The cerebrum. Origin: NL, fr. Gr. Toward, near to + E. Encephalon] [Sometimes abbreviated to proen. Source: Websters Dictionary (01 Mar 1998) |
| prosenchyma | <botany> A general term applied to the tissues formed of elongated cells, especially those with pointed or oblique extremities, as the principal cells of ordinary wood. Origin: NL, fr. Gr. Near + -enchyma, as in parenchyma. Source: Websters Dictionary (01 Mar 1998) |
| proserum prothrombin conversion accelerator | A coagulation (clotting) factor. Classic haemophilia (haemophilia A) is due to a congenital deficiency in the amount (or activity) of factor VIII. Factor VIII is also known as antihemophiliac factor (AHF) or antihemophiliac globulin (AHG). The gene for factor VIII (that for classic haemophilia) is on the X chromosome so females can be silent carriers without symptoms and males can be haemophiliacs. (12 Dec 1998) |
| prosimiae | <zoology> Same as Lemuroidea. Origin: NL. See Pro-. And Simia. Source: Websters Dictionary (01 Mar 1998) |
| prosiphon | <zoology> A minute tube found in the protocon of ammonites, and not connected with the true siphon. Origin: Pref. Pro- for + siphon. Source: Websters Dictionary (01 Mar 1998) |
| Proskauer, Bernhard | <person> German bacteriologist, 1851-1915. See: Voges-Proskauer reaction. (05 Mar 2000) |
| prosnostic | Indicating something future by signs or symptoms; foreshowing; aiding in prognosis; as, the prognostic symptoms of a disease; prognostic signs. Origin: Gr. See Prognosis. Source: Websters Dictionary (01 Mar 1998) |
| prosobranch | <zoology> One of the Prosobranchiata. Source: Websters Dictionary (01 Mar 1998) |
| prosobranchiata | <marine biology, zoology> The highest division, or subclass, of gastropod mollusks, including those that have the gills situated anteriorly, or forward of the heart, and the sexes separate. Origin: NL, fr. Gr. Forward, further + a gill. (19 Mar 1998) |
| prosocoele | <anatomy> The entire cavity of the prosencephalon. Origin: Gr. Forward + hollow. Source: Websters Dictionary (01 Mar 1998) |
| prosocoelia | Origin: NL. <anatomy> Same as Prosocoele. Source: Websters Dictionary (01 Mar 1998) |
| prosodemic | Denoting a disease that is transmitted directly from person to person. Origin: G. Proso, forward, + demos, people (05 Mar 2000) |
| prosoma | <zoology> The anterior of the body of an animal, as of a cephalopod; the thorax of an arthropod. (06 Mar 1998) |
| prosome | <cell biology> Raspberry shaped ribonucleoprotein particle (19S) composed of small cytoplasmic RNA (15%) and heat-shock proteins, thought to be involved in post transcriptional repression of mRNA translation: found in both nucleus and cytoplasm. Origin: Gr. Soma = body (18 Nov 1997) |