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[an-ti-doht] /ˈæn tɪˌdoʊt/
a medicine or other remedy for counteracting the effects of poison, disease, etc.
something that prevents or counteracts injurious or unwanted effects:
Good jobs are the best antidote to teenage crime.
verb (used with object), antidoted, antidoting.
to counteract with an antidote:
Medication was given to antidote the poison the child had swallowed.
Origin of antidote
late Middle English
1400-50; late Middle English (< Middle French) < Latin antidotum < Greek antídoton something given against (i.e., for counteracting), equivalent to anti- anti- + dotón neuter of dotós given, verbid of didónai to give; akin to datum
Related forms
antidotal, antidotical
[an-ti-dot-i-kuh l] /ˌæn tɪˈdɒt ɪ kəl/ (Show IPA),
antidotally, antidotically, adverb
Can be confused
anecdote, antedate, antidote. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for antidotal


(med) a drug or agent that counteracts or neutralizes the effects of a poison
anything that counteracts or relieves a harmful or unwanted condition; remedy
Derived Forms
antidotal, adjective
Word Origin
C15: from Latin antidotum, from Greek antidoton something given as a countermeasure, from anti- + didonai to give
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 antidotal

1640s, from antidote + -al (1).



"remedy counteracting poison," 1510s (earlier in English as a Latin word), from Middle French antidot and directly from Latin antidotum "a remedy against poison," from Greek antidoton "given as a remedy," literally "given against," verbal adjective of antididonai "give in return," from anti- "against" + didonai "to give" (see date (n.1)). Cf. Middle English antidotarie "treatise on drugs or medicines" (c.1400).

Online Etymology Dictionary, © 2010 Douglas Harper
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antidotal in Medicine

antidote an·ti·dote (ān'tĭ-dōt')
An agent used to neutralize or counteract the effects of a poison.

an'ti·dot'al (ān'tĭ-dōt'l) adj.
an'ti·dot'al·ly adv.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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antidotal in Science
A substance that counteracts the effects of a poison.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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