The meaning of INTERACTION is mutual or reciprocal action or influence. How to use interaction in a sentence.

Communicating & keeping in touch (Definition of interaction from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Definition of interaction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

(of two or more people, things etc) to act, or have some effect, on each other.

Interaction, or an interaction, of substances occurs when the substances affect each other's behavior or action. One possible drug interaction can involve the drugs working together to …

in•ter•ac•tion, n. [uncountable] social interaction between men and women. [countable] day-to-day interactions. in•ter•ac•tive, adj.: Interactive video lets the user decide what to see on the screen.

interaction definition: communication or direct involvement with someone or something. Check meanings, examples, usage tips, pronunciation, domains, and related words.