Interaction Definition

ĭntər-ăkshən
interactions
noun
interactions
The state of undergoing interaction.
American Heritage
Action on each other; reciprocal action or effect.
Webster's New World
A dealing, working, etc. together or with another.
Webster's New World

The situation or occurrence in which two or more objects or events act upon one another to produce a new effect; the effect resulting from such a situation or occurrence.

Be aware of interactions between different medications.
Wiktionary

A conversation or exchange between people.

I enjoyed the interaction with a bunch of like-minded people.
Wiktionary
Synonyms:

Other Word Forms of Interaction

Noun

Singular:
interaction
Plural:
interactions

Origin of Interaction

  • inter- +‎ action

    From Wiktionary

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interaction