Dictionary.net

A short act or piece between others, as in a play; an interlude; hence, intermediate employment or time.

A short act or piece between others, as in a play; an interlude; hence, intermediate employment or time.

To exert influence upon each other; to have effect upon each other.

To act reciprocally: to act on each other. Prof. Tyndall. "The two complexions, or two styles of mind-the perceptive class, and the practical finality class-are ever in counterpoise, interacting mutually."-Emerson.

n. An interlude between the acts of a play; a short performance of music or dancing to fill up the interval between the acts.