TERTIATE

Source: 566, 567

tertiate. Tertiate, v.t. to examin the thickness of metal at the muzzle of a gun

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Ter″ti‐ate (?), v. t. [[L. tertiatus, p. p. of tertiare to do for the third time, fr. tertius the third.]] 1. 1. To do or perform for the third time. Johnson.
2. 2. (Gun.) To examine, as the thickness of the metal at the muzzle of a gun; or, in general, to examine the thickness of, as ordnance, in order to ascertain its strength.