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[n., adj. oh-pee-it, -eyt; v. oh-pee-eyt] /n., adj. ˈoʊ pi ɪt, -ˌeɪt; v. ˈoʊ piˌeɪt/
a drug containing opium or its derivatives, used in medicine for inducing sleep and relieving pain.
any sedative, soporific, or narcotic.
anything that causes dullness or inaction or that soothes the feelings.
mixed or prepared with opium.
inducing sleep; soporific; narcotic.
causing dullness or inaction.
verb (used with object), opiated, opiating.
to subject to an opiate; stupefy.
to dull or deaden.
Origin of opiate
1535-45; < Medieval Latin opiātus bringing sleep, equivalent to Latin opi(um) opium + -ātus -ate1
Related forms
unopiated, adjective
2. drug. 3. anodyne. 5. sedative.
2. stimulant. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for opiate
  • Its derivative, heroin, is the main opiate of addiction and there are several ways in which that drug can be taken.
  • Doctors tried unsuccessfully to revive him with naloxone, a drug used to treat opiate overdoses.
  • Even their pain was indifferently dealt with, in case they were turned into opiate addicts in their final days.
  • Fourth, methadone is one of a long list opiate drugs.
  • Claims to be able to reliably differentiate between opiate and poppy seed use.
  • Blocking opiate molecules from attaching to receptors is another model.
  • Consumerism, via products made possible through science and technology, is the new opiate of the people.
  • Pain is the body's way of saying you've gone too far, and opiate addiction's a nasty thing.
  • So many of the patients currently being treated in methadone programs have never had an opiate addiction.
  • Then, however, a country's pain was treated with the opiate of ceremony.
British Dictionary definitions for opiate


noun (ˈəʊpɪɪt)
any of various narcotic drugs, such as morphine and heroin, that act on opioid receptors
any other narcotic or sedative drug
something that soothes, deadens, or induces sleep
adjective (ˈəʊpɪɪt)
containing or consisting of opium
inducing relaxation; soporific
verb (transitive) (rare) (ˈəʊpɪˌeɪt)
to treat with an opiate
to dull or deaden
Word Origin
C16: from Medieval Latin opiātus; from Latin opium poppy juice, opium
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
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Word Origin and History for opiate

"medicine containing opium," early 15c., from Medieval Latin opiatus, from Latin opium (see opium). Figurative sense of "anything that dulls the feelings" is from 1640s. From 1540s in English as an adjective, "made with or containing opium."

Online Etymology Dictionary, © 2010 Douglas Harper
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opiate in Medicine

opiate o·pi·ate (ō'pē-ĭt, -āt')

  1. Any of various sedative narcotics that contain opium or one or more of its natural or synthetic derivatives.

  2. A drug, hormone, or other chemical substance that has sedative or narcotic effects similar to those containing opium or its derivatives. Also called opioid.

  1. Of or containing opium or any of its derivatives.

  2. Resembling opium or its derivatives in activity.

  3. Inducing sleep or sedation; soporific.

v. o·pi·at·ed, o·pi·at·ing, o·pi·ates (-āt')
To subject to the action of an opiate.
o'pi·ate (-ĭt, -āt') adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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