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Definition of interaction

interaction

/ˌɪn.təˈræk.ʃən/
in · ter · ac · tion
Adverb:interactively
•
Plural:interactions
•
Adjective:interactive
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interaction Lexical Profile

interaction Game Scores & Validity

• noun

1

Reciprocal action, influence, or effect between two or more things, systems, or physical forces.

Example

"The pharmacist warned the patient about a potentially harmful interaction between the two prescribed medications."

2

Communication, direct involvement, or social engagement with someone or something.

Example

"Regular classroom interaction helps students develop stronger communication and teamwork skills."

3

In physics, a particular way in which matter, fields, and atomic or subatomic particles affect one another, such as through gravitation or electromagnetism.

Example

"The weak nuclear interaction is responsible for the radioactive decay of subatomic particles."

Synonyms
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Antonyms
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• Rhymes for interaction

• Nearby Words

intentness
inter
interact
interaction
interactive
interactively
interactivity

Word Origin & Etymology

Formed in the early 19th century from the prefix 'inter-' (meaning 'between' or 'among') and 'action', which derives from the Latin 'actio' (a doing or performing), from the verb 'agere' (to do, act, or drive).

Cite this Entry

Wordmom. (2026). Definition of Interaction. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/interaction
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