| pinniped | <zoology> One of the Pinnipedia; a seal. One of the Pinnipedes. Origin: L. Pinna feather, fin + pes, pedis, a foot: cf. F. Pinnipede. Source: Websters Dictionary (01 Mar 1998) |
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| pinnipedes | <zoology> Same as Steganopodes. Source: Websters Dictionary (01 Mar 1998) |
| pinnipedia | <zoology> A suborder of aquatic carnivorous mammals including the seals and walruses; opposed to Fissipedia. Origin: NL. So called because their webbed feet are used as paddles or fins. Source: Websters Dictionary (01 Mar 1998) |
| pinnock | <zoology> The hedge sparrow. The tomtit. Origin: Of uncertain origin. Source: Websters Dictionary (01 Mar 1998) |
| pinnothere | <zoology> A crab of the genus pinnotheres. See Oyster crab, under Oyster. Origin: Gr. A pinna + an animal. Source: Websters Dictionary (01 Mar 1998) |
| pinnulate | <botany> Having each pinna subdivided; said of a leaf, or of its pinnae. See: Pinnule. Source: Websters Dictionary (01 Mar 1998) |
| pinnulated | <zoology> Having pinnules. Source: Websters Dictionary (01 Mar 1998) |
| pinnule | A leaflet of a bipinnate leaf. (09 Oct 1997) |
| pinocyte | A cell that exhibits pinocytosis. Origin: G. Pineo, to drink, + kytos, cell (05 Mar 2000) |
| pinocytosis | Uptake of fluid filled vesicles into cells (endocytosis). Macro pinocytosis and micro pinocytosis are distinct processes, the latter being energy independent and involving the formation of receptor ligand clusters on the outside of the plasma membrane and clathrin on the cytoplasmic face. (18 Nov 1997) |
| pinocytotic vesicle | Fluid filled endocytotic vesicle, usually less than 150 nm diameter. Micropinocylotic vesicles are around 70 nm diameter. (18 Nov 1997) |
| pinole | 1. An aromatic powder used in Italy in the manufacture of chocolate. 2. Parched maize, ground, and mixed with sugar, etc. Mixed with water, it makes a nutritious beverage. Source: Websters Dictionary (01 Mar 1998) |
| pinon | <botany> The edible seed of several species of pine; also, the tree producing such seeds, as Pinus Pinea of Southern Europe, and P. Parryana, cembroides, edulis, and monophylla, the nut pines of Western North America. See Monkey's puzzle. Alternative forms: pignon. Origin: Sp. Pinon. Source: Websters Dictionary (01 Mar 1998) |
| pinoresinol reductase | <enzyme> Catalyses the conversion of pinoresinol to lariciresinol; isolated from forsythia intermedia Registry number: EC 1.1.1.- (26 Jun 1999) |
| pinosome | <cell biology> A pinocytotic vesicle. Origin: Gr. Soma = body (18 Nov 1997) |