| piperidge | <botany> Same as Pepperidge. Source: Websters Dictionary (01 Mar 1998) |
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| piperidine | <chemistry> An oily liquid alkaloid, C5H11N, having a hot, peppery, ammoniacal odour. It is related to pyridine, and is obtained by the decomposition of piperine. Source: Websters Dictionary (01 Mar 1998) |
| piperidines | A family of hexahydropyridines. Piperidine itself is found in the pepper plant as the alkaloid piperine. (12 Dec 1998) |
| piperidolate hydrochloride | 1-Ethyl-3-piperidyl diphenylacetate hydrochloride;an anticholinergic agent. (05 Mar 2000) |
| piperine | <chemistry> A white crystalline compound of piperidine and piperic acid. It is obtained from the black pepper (Piper nigrum) and other species. Origin: L. Piper pepper: cf. F. Piperin, piperine. Source: Websters Dictionary (01 Mar 1998) |
| piperocaine hydrochloride | 3-(2-Methyl-1-piperidyl)propyl benzoate hydrochloride;a rapidly acting local anaesthetic for infiltration and nerve blocks. (05 Mar 2000) |
| piperonal | <chemistry> A white crystalline substance obtained by oxidation of piperic acid, and regarded as a complex aldehyde. Source: Websters Dictionary (01 Mar 1998) |
| piperonyl butoxide | <chemical> An insecticide synergist, especially for pyrethroids and rotenone. Pharmacological action: pesticide synergists. Chemical name: 1,3-Benzodioxole, 5-((2-(2-butoxyethoxy)ethoxy)methyl)-6-propyl- (12 Dec 1998) |
| piperoxan | <chemical> A benzodioxane alpha-adrenergic blocking agent with considerable stimulatory action. It has been used to diagnose pheochromocytoma and as an antihypertensive agent. Pharmacological action: adrenergic alpha-antagonists, antihypertensive agents, sympatholytics. Chemical name: Piperidine, 1-((2,3-dihydro-1,4-benzodioxin-2-yl)methyl)- (12 Dec 1998) |
| piperoxan hydrochloride | 2-(1-piperidylmethyl)-1,4-benzodioxane hydrochloride;an adrenergic (alpha-receptor blocking agent of the Fourneau series of benzodioxanes); used as a diagnostic test for pheochromocytoma. Synonym: Fourneau 933. (05 Mar 2000) |
| piperylene | <chemistry> A hydrocarbon obtained by decomposition of certain piperidine derivatives. Origin: Piperidine + acetylene. Source: Websters Dictionary (01 Mar 1998) |