[koh-nee-een, -in, -neen]


a volatile, highly poisonous alkaloid, C8H17N, constituting the active principle of the poison hemlock.

Also co·nin [koh-nin] /ˈkoʊ nɪn/, co·nine [koh-neen, -nin] /ˈkoʊ nin, -nɪn/.

Origin of coniine

First recorded in 1825–35; coni(um) + -ine2 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for coniine

Historical Examples of coniine

British Dictionary definitions for coniine


conin (ˈkəʊnɪn) or conine (ˈkəʊniːn, -nɪn)


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

Word Origin for coniine

C19: from conium + ine ²
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