interaction Meaning, Definition & Usage
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noun a mutual or reciprocal action; interacting
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noun (physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
fundamental interaction.
WordNet
In`ter*ac"tion noun
Definitions
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Intermediate action. -
Mutual or reciprocal action or influence; as, the .interaction of the heart and lungs on each other