/kælɪˌbreɪtɪd/
VERB
To determine or correct the accuracy of an instrument or device by comparing its measurements with an established standard.
Checked and adjusted a measuring instrument or device to ensure that its readings conform to an established standard.
VERB
To establish or mark the graduations on a measuring instrument so that its scale indicates accurate values.
Marked or established the divisions and graduations on a measuring instrument's scale to represent specific measurement values.
VERB
To measure or determine the internal diameter or caliber of a tube, barrel, or gun.
Measured or determined the diameter or caliber of a cylindrical object, tube, or firearm barrel.