coniine[kō′nē ēn′, -in; kō′nēn′]
coniine definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
a very poisonous, oily alkaloid, CHN, extracted from the poison hemlock
Origin: ; from conium plush -ine
coniine definition by American Heritage Dictionary
also co·nin or co·ninenoun
A poisonous colorless liquid alkaloid, C5H10NC3H7, found in the poison hemlock.
Origin: Late Latin cōnium, conium; see conium + -ine2.