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

INTERACTION definition: 1. an occasion when two or more people or things communicate with or react to each other: 2. an…. Learn more.

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

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 have a stronger …

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

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.

A conversation or exchange between people. I enjoyed the interaction with a bunch of like-minded people.