[ pik-ruh-tok-sin ]
/ ˌpɪk rəˈtɒk sɪn /

noun Pharmacology.

a white, crystalline, bitter, poisonous, central nervous system stimulant, C30H34O13, obtained from the seeds of Anamirta cocculus: used chiefly in the treatment of barbiturate poisoning.

Origin of picrotoxin

1865–70; < Greek pikr(ós) bitter + -o- + toxin

Related forms

pic·ro·tox·ic, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for picrotoxin

British Dictionary definitions for picrotoxin


/ (ˌpɪkrəˈtɒksɪn) /


a bitter poisonous crystalline compound formerly used as an antidote for barbiturate poisoning. Formula: C 30 H 34 O 13
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 picrotoxin


[ pĭk′rə-tŏksĭn ]


A bitter crystalline compound derived from the seed of an East Indian woody vine and used as a stimulant, especially in treating barbiturate poisoning.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.