Interaction
WordNet
noun
(1) A mutual or reciprocal action; interacting
(2) (physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons
WiktionaryText
Noun
- the act of some things interacting, or acting upon one another.
- Be aware of interactions between different medications.
- A conversation or exchange between people.
- I enjoyed the interaction with a bunch of like-minded people.