Tēr'ti-āte, v. t.

(-shē-āt), v. t. [Lat. tertiare, tertiatum, from tertius, the third; It. terziare, terzare, Sp. terciar, Pr. tersar, Fr. tiercer.]

1. To do or perform for the third time. Johnson.
2. 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.