| pentadactyl | Having five fingers or toes on each hand or foot. Synonym: quinquedigitate. Origin: penta-+ G. Daktylos, finger (05 Mar 2000) |
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| pentadactyle | 1. <anatomy> Having five digits to the hand or foot. 2. Having five appendages resembling fingers or toes. Origin: Gr. With five fingers or toes. See Penta-, and Dactyl. Source: Websters Dictionary (01 Mar 1998) |
| pentadactyloid | <anatomy> Having the form of, or a structure modified from, a pentadactyl limb. Origin: Pentadactyl Source: Websters Dictionary (01 Mar 1998) |
| pentadecane | <chemistry> A hydrocarbon of the paraffin series, (C15H32) found in petroleum, tar oil, etc, and obtained as a colourless liquid; so called from the fifteen carbon atoms in the molecule. Origin: Penta- + Gr. Ten. Source: Websters Dictionary (01 Mar 1998) |
| pentadecatoic | <chemistry> Of, pertaining to, or derived from, pentadecane, or designating an acid related to it. Origin: Penta- + decatoic. Source: Websters Dictionary (01 Mar 1998) |
| pentadecylic | <chemistry> Same as Quindecylic. Origin: Penta- + decylic. Source: Websters Dictionary (01 Mar 1998) |
| pentadelphous | <botany> Having the stamens arranged in five clusters, those of each cluster having their filaments more or less united, as the flowers of the linden. Origin: Penta- + Gr. Brother. Source: Websters Dictionary (01 Mar 1998) |
| pentaerythritol | C(CH2OH)4; Tetrakis(hydroxymethyl)methane;the tetranitrate is a coronary vasodilator with action similar to that of other slow acting organic nitrates. (05 Mar 2000) |
| pentaerythritol tetranitrate | <chemical> A vasodilator with general properties similar to nitroglycerin but with a more prolonged duration of action. Pharmacological action: vasodilator agents. Chemical name: 1,3-Propanediol, 2,2-bis((nitrooxy)methyl)-, dinitrate (ester) (12 Dec 1998) |
| pentaerythritol tetranitrate reductase | <enzyme> Catalyses denitration of pentaerythritol tetranitrate with NADPH to 3-hydroxy-2,2-bis-((nitroxy)methyl)propanal and 2,2-bis-((nitroxy)methyl)-propanedial; isolated from enterobacter cloacae Registry number: EC 1.7.99.- Synonym: petn reductase (26 Jun 1999) |
| pentafid | <botany> Divided or cleft into five parts. Origin: Penta- + root of L. Findere to split. Source: Websters Dictionary (01 Mar 1998) |
| pentagastrin | <chemical> A synthetic polypeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid. Chemical name: L-Phenylalaninamide, N-((1,1-dimethylethoxy)carbonyl)-beta-alanyl-L-tryptophyl-L-methionyl-L-alpha-aspartyl- (12 Dec 1998) |
| pentagastrin test | An alternative to histamine for stimulation of acid secretion in gastric analysis. (05 Mar 2000) |
| pentagon | <geometry> A plane figure having five angles, and, consequently, five sides; any figure having five angles. Regular pentagon, a pentagon in which the angles are all equal, and the sides all equal. Origin: Gr.; (see Penta-) + gwnia angle: cf. L. Pentagonium, F. Pentagone. Source: Websters Dictionary (01 Mar 1998) |
| pentagraphic | Pantographic. See Pantograph. Origin: Corrupted fr. Pantographic, -ical. Source: Websters Dictionary (01 Mar 1998) |