| podzolisation | <biochemistry> The process by which sesquioxides (aluminum and iron) are leached from the A-horizon and precipitated in the B-horizon, often resulting in a leached layer, the E-horizon (see horizon. (09 Oct 1997) |
|---|---|
| poebird | <zoology> The parson bird. Source: Websters Dictionary (01 Mar 1998) |
| poecilia | A genus of livebearing cyprinodont fish comprising the guppy and molly. Some species are virtually all female and depend on sperm from other species to stimulate egg development. Poecilia is used in carcinogenicity studies as well as neurologic and physiologic research. (12 Dec 1998) |
| poecilitic | <geology> Mottled with various colours; variegated; spotted; said of certain rocks. Specifically: Of or pertaining to, or characterising, Triassic and Permian sandstones of red and other colours. [Also written poikilitic. Origin: Gr. Many-coloured, variegated. Source: Websters Dictionary (01 Mar 1998) |
| poecilopod | <zoology> One of the Poecilopoda. Also used adjectively. Origin: Cf. F. Poecilopode. Source: Websters Dictionary (01 Mar 1998) |
| poecilopoda | <zoology> Originally, an artificial group including many parasitic Entomostraca, together with the horseshoe crabs (Limuloidea). By some recent writers applied to the Merostomata. Origin: NL, fr. Gr. Variegated, manifold + -poda. Source: Websters Dictionary (01 Mar 1998) |
| POEMS | Acronym for polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, and skin changes. See: POEMS syndrome. (05 Mar 2000) |
| poems syndrome | <syndrome> A chronic, progressive multisystem disorder of obscure aetiology characterised by polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy and skin changes. (12 Dec 1998) |
| poenamu | <chemical> A variety of jade or nephrite, used in New Zealand for the manufacture of axes and weapons. Source: Websters Dictionary (01 Mar 1998) |
| poephaga | <zoology> A group of herbivorous marsupials including the kangaroos and their allies. Poeph"agous. Origin: NL, fr. Gr. Grass eating; grass + to eat. Source: Websters Dictionary (01 Mar 1998) |
| poetess | A female poet. Origin: Cf. F. Poetesse. Source: Websters Dictionary (01 Mar 1998) |
| poggy | <zoology> See Porgy. A small whale. Source: Websters Dictionary (01 Mar 1998) |
| pogoniasis | A rarely used term for the growth of a beard on a woman, or excessive hairiness of the face in men. See: hirsutism. Origin: G. Pogon, beard, + -iasis, condition (05 Mar 2000) |
| pogonion | In craniometry, the most anterior point on the mandible in the midline; the most anterior, prominent point on the chin. Synonym: mental point. Origin: G. Dim. Of pogon, beard (05 Mar 2000) |
| Pogonomyrmex | A genus of ants that attack humans and small animals. Synonym: harvester ant. Origin: G. Pogon, beard, + myrmex, ant (05 Mar 2000) |