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counteract

play
verb coun·ter·act \ˌkau̇n-tər-ˈakt\

Simple Definition of counteract

  • : act against (something) : to cause (something) to have less of an effect or to have no effect at all

Source: Merriam-Webster's Learner's Dictionary

Full Definition of counteract

  1. transitive verb
  2. :  to make ineffective or restrain or neutralize the usually ill effects of by means of an opposite force, action, or influence <a drug used to counteract fatigue>

counteraction

play \-ˈak-shən\ noun

counteractive

play \-ˈak-tiv\ adjective

Examples of counteract in a sentence

  1. The drug will counteract the poison.

  2. <this medication will counteract the symptoms but it won't kill the infection>



1655

First Known Use of counteract

1655


COUNTERACT Defined for Kids

counteract

play
verb coun·ter·act \ˌkau̇n-tər-ˈakt\

Definition of counteract for Students

counteracted

counteracting

  1. :  to make (something) have less of an effect or no effect at all <The antidote counteracts the poison.>




Medical Dictionary

counteract

play
transitive verb coun·ter·act \ˌkau̇nt-ə-ˈrakt\

Medical Definition of counteract

  1. :  to make ineffective or restrain or neutralize the usually ill effects of by an opposite force <vitamin K counteracts the effects of warfarin>

counteraction

\-ˈrak-shən\play noun




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to lessen in amount, effect, or force

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