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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