interaction: Meaning and Definition of
in•ter•ac•tion
Pronunciation: (in"tur-ak'shun), [key] — n.
- reciprocal action, effect, or influence.
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- the direct effect that one kind of particle has on another, in particular, in inducing the emission or absorption of one particle by another.
- the mathematical expression that specifies the nature and strength of this effect.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.