(n) (physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons, Syn. fundamental interaction
2. Mutual or reciprocal action or influence; as, the interaction of the heart and lungs on each other. [ 1913 Webster ]
3.Hence: (Physics) The effect, such as exertion of a force, that one object exerts on another, especially the capture or emission of a particle. [ PJC ]
4. Communication between people, or the actions of people that affect others. [ PJC ]
[たいおう, taiou] (n, vs) (1) interaction; correspondence; coping with; dealing with; support; (2) { comp } software support; ability of a computer system to run specific software; (P)#670