inter

[ L. inter, prep., among, between, a compar. form of in in; akin to intra, intro, within, Skr. antar between, in, and E. in. See In, and cf. Entrails, Interior, Enter-, Exterior. ] A prefix signifying among, between, amid; as, interact, interarticular, intermit. [ 1913 Webster ]

n. [ Pref. inter- + act. Cf. Entr'acte. ] A short act or piece between others, as in a play; an interlude; hence, intermediate employment or time. Chesterfield. [ 1913 Webster ]

v. i. To act upon each other; as, two agents mutually interact. Emerson. Tyndall. [ 1913 Webster ]

n. 1. Intermediate action. [ 1913 Webster ]

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 ]

a. Added or placed between the parts of another thing, as a clause inserted parenthetically in a sentence. [ 1913 Webster ]

a. Of or pertaining to actions, processes, or objects involving to more than one agency (senses 4 or 5); as, interagency cooperation. [ PJC ]

n. Intermediate agency. [ 1913 Webster ]

n. An intermediate agent. [ 1913 Webster ]