D defs.my
Entry 1 sense Webster, 1913

Calibrate

/kăl'-əb-rātˌ/ · Cal·i·brate · IPA /ˈkæl.ə.bɹeɪt/
01 v. i. To ascertain the caliber of, as of a thermometer tube; also, more generally, to determine or rectify the graduation of, as of the various s…
  1. 1.
    To ascertain the caliber of, as of a thermometer tube; also, more generally, to determine or rectify the graduation of, as of the various standards or graduated instruments.