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Webster 1913 Edition

Noun.

[Pref.

inter-

act

. Cf.

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

Chesterfield.

Verb.

To act upon each other;

as, two agents mutually

interact

Emerson.

Tyndall.

Noun.

[inter and act.] Intermediate employment or time; a short piece between others.