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counteract

One entry found for counteract.
Main Entry: coun·ter·act
Pronunciation: "kaun-t&r-'akt
Function: transitive verb
: 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>
- coun·ter·ac·tion /-'ak-sh&n/ noun
- coun·ter·ac·tive /-'ak-tiv/ adjective