Also found in: Encyclopedia, Wikipedia.


 (kō′nē-ēn′) also co·nine (-nēn′)
A poisonous colorless liquid alkaloid, C8H17N, found in the poison hemlock.

[Late Latin cōnium, conium; see conium + -ine.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈkəʊnɪˌiːn; -nɪɪn; -niːn) ,




(Biochemistry) Also called: cicutine or conicine a colourless poisonous soluble liquid alkaloid found in hemlock; 2-propylpiperidine. Formula: C5H10NC3H7
[C19: from conium + ine2]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈkoʊ niˌin, -ɪn, -nin)

also co•nin



(-nin, -nɪn)

a volatile alkaloid, C8H17N, that is the active principle of the poison hemlock.
[1825–35; coni (um) + -ine2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Coniine ([C.sub.8][H.sub.17]N) is a poisonous chemical compound and
Research shows that coniine is the most potent poisonous alkaloid
The nectar has been shown to contain coniine (Mody et al, 1976), an alkaloid drug that may stupefy insects and help with prey capture, and the leaf emits volatiles, which may mimic the smell of fruit or flowers (Jurgens et al., 2009).
Chemical constituents: Main alkaloid is coniine and a volatile oil.
We coniine this analysis to just the county where nearly all of the action occurred, the county that would eventually hold the new facility.
Shvmr Emperor (756-724) abolished the death penalty, compassion institution building and procedure but then again things began Coniine Emperor (770-781) Kiefer death penalty re-established again.
Cadre d emergence de l'appel coniine vole de recours C.
The poison hemlock plant (Conium maculatum) contains several toxic piperidine alkaloids, primarily coniine, and has been used since antiquity as an intentional poison--most notably by the Athenians to execute Socrates.
A herbaceous plant with leaves typical of the carrot family, hemlock, shown in Figure 21-12, contains the toxin coniine. It is not the same as the woody hemlock tree.
Morphine found in opium, atropine in henbane, scopolamine in mandrake, and coniine in hemlock can all induce sleep.
The poison is a volatile alkaloid, coniine, found in the foliage all season and in the seeds in late summer.