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

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 noun [C, U] (THINGS) the way that two or more things combine and have an effect on each other

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

One possible drug interaction can involve the drugs working together to have a stronger effect. An interaction between medications occurs when the effectiveness of one medication is altered by …

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

• Learning is through interaction with the environment rather than being preprogrammed. • The third dialectic involves the subject recognizing itself through interaction with other subjects. • …

In ecology, a biological interaction is the effect that a pair of organisms living together in a community have on each other. They can be either of the same species (intraspecific …

Definition of interaction. English dictionary and integrated thesaurus for learners, writers, teachers, and students with advanced, intermediate, and beginner levels.

Jun 23, 2025 · Established in 1984, InterAction is the leading alliance of NGOs and partners in the United States. With a focus on serving the world’s impoverished and vulnerable populations, …