• synonyms


[ pi-per-i-deen, -din, pahy-, pip-er-i- ]
/ pɪˈpɛr ɪˌdin, -dɪn, paɪ-, ˈpɪp ər ɪ- /

noun Chemistry.

a colorless, water-soluble liquid, C5H11N, obtained from the alkaloid piperine or from pyridine: used chiefly as a solvent.

Nearby words

piper, piperaceous, piperacillin, piperacillin sodium, piperazine, piperidine, piperine, piperonal, piperonyl butoxide, pipes, pipes of pan

Origin of piperidine

1850–55; < Latin piper pepper + -id3 + -ine1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for piperidine

  • If we introduce six hydrogen atoms into pyridine, we convert it into piperidine.

    Scientific American Supplement, No. 623, December 10, 1887|Various
  • Piperidine hydrochlorate, also, when heated with excess of bromine to 180° C., yields dibrompyridine.

British Dictionary definitions for piperidine


/ (pɪˈpɛrɪˌdiːn, -dɪn) /


a colourless liquid heterocyclic compound with a peppery ammoniacal odour: used in making rubbers and curing epoxy resins. Formula: C 5 H 11 N
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for piperidine


[ pī-pĕrĭ-dēn′, pĭ- ]


A strongly basic, colorless liquid from which certain phenothiazine antipsychotics are derived.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.