—n. 1. one of three identical items, esp. copies of typewritten material.
2. in triplicate, a. in three identical copies: This letter should be done in triplicate. b. threefold: That goes for me, too, in triplicate.
—v.t. 1. to make threefold; triple.
2. to make in triplicate: to triplicate a report before releasing it.
—adj. produced in or consisting of three copies or parts; threefold; triple: triplicate contracts.