- represent Continue to assert or uphold (a position or belief) despite opposition "He defended his innocence "; - maintain Derived forms: defending, defends, defended Type of: affirm, argue, back, bring, endorse, fight, indorse [rare], institute, keep, plump for, prevent, protect, reason, struggle, support Antonym: assail, prosecute ... The meaning of REACTION is the act or process or an instance of reacting. How to use reaction in a sentence.

Understanding the Context

REACTION definition: a reverse movement or tendency; an action in a reverse direction or manner. See examples of reaction used in a sentence. REACTION definition: 1. behaviour, a feeling or an action that is a direct result of something else: 2.

Key Insights

someone's…. Learn more. Definition of reaction noun in Oxford Advanced American Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Define reaction.

Final Thoughts

reaction synonyms, reaction pronunciation, reaction translation, English dictionary definition of reaction. n. 1. a. A response to a stimulus. b.

The state resulting from such a response. 2. A reverse or opposing action. 3.