opiate

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opiate

 [o´pe-at]
1. any sedative narcotic containing opium or any of its derivatives; the most common ones are codeine, heroin, methadone, and morphine.
2. hypnotic (def. 2).
endogenous o's endorphins and enkephalins that are released by the body as a defense against pain or during physical exercise, deep relaxation, sexual activity, crying, and laughing.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

o·pi·ate

(ō'pē-āt),
Any preparation or derivative of opium.
Farlex Partner Medical Dictionary © Farlex 2012

opiate

(ō′pē-ĭt, -āt′)
n.
1. Any of various analgesic, narcotic drugs derived from the opium poppy, such as morphine or codeine.
2. See opioid.
3. Something that dulls the senses and induces relaxation or torpor.
adj.
1.
a. Containing opium or any of its derivatives.
b. Resembling opium or its derivatives in activity.
2. Inducing sleep or sedation; soporific.
3. Causing dullness or apathy; deadening.
tr.v. (-āt′) opi·ated, opi·ating, opi·ates
1. To subject to the action of an opiate.
2. To dull or deaden as if with a narcotic drug.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

opiate

Any natural–eg, opium semi-synthetic–eg, morphine or synthetic–eg, fentanyl, usually alkaloid narcotic agent with opium-like activity. See Drug screening, Narcotic.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

o·pi·ate

(ō'pē-ăt)
Any preparation or derivative of opium.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

opiate

a narcotic substance derived from opium.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Opiate

Any narcotic analgesic derived from a natural source, such as morphine from the opium poppy.
Mentioned in: Methadone
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

o·pi·ate

(ō'pē-ăt)
Any preparation or derivative of opium.
Medical Dictionary for the Dental Professions © Farlex 2012