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coniine

American  
[koh-nee-een, -in, -neen] / ˈkoʊ niˌin, -ɪn, -nin /
Also conin

noun

  1. a volatile, highly poisonous alkaloid, C 8 H 17 N, constituting the active principle of the poison hemlock.

coniine British  
/ -nɪɪn, -nɪn, -niːn, ˈkəʊnɪn, ˈkəʊnɪˌiːn, ˈkəʊniːn /

noun

  1. Also called: cicutine.   conicine.  a colourless poisonous soluble liquid alkaloid found in hemlock; 2-propylpiperidine. Formula: C 5 H 10 NC 3 H 7

"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

Etymology

Origin of coniine

First recorded in 1825–35; coni(um) + -ine 2

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.