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 (sto͞o′pə-fā′shənt, styo͞o′-)
Inducing stupor; stupefying or narcotic.
A drug, such as a narcotic, that induces stupor.

[Latin stupefaciēns, stupefacient-, present participle of stupefacere, to stupefy; see stupefy.]
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.


(Pharmacology) a drug that causes stupor
(Pharmacology) of, relating to, or designating this type of drug
[C17: from Latin stupefacere to make senseless, from stupēre to be stunned + facere to make]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
Fuary (1991: 148) recorded that lama (Yam) Islanders of the central Strait 'occasionally' poison fish in tide pools on coral reef flats using the stupefacient sazi (Derris sp.).
And the honor did not derive from some stupefacient gimmick like race.