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单词 side effect
释义

side effect

or side-ef·fect

SEE SYNONYMS FOR side effect ON THESAURUS.COM

noun

any effect of a drug, chemical, or other medicine that is in addition to its intended effect, especially an effect that is harmful or unpleasant.
any accompanying or consequential and usually detrimental effect: the side effects of air pollution.

Origin of side effect

First recorded in 1880–85

Words nearby side effect

side deal, side dish, side-dress, side dressing, side drum, side effect, side-foot, side-glance, sidehead, sidehill, side horse
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for side effect

side effect

noun

any unwanted nontherapeutic effect caused by a drugCompare aftereffect (def. 2)
any secondary effect, esp an undesirable one
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

Medical definitions for side effect

side effect

n.

A peripheral or secondary effect, especially an undesirable secondary effect of a drug or therapeutic regimen.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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