<p><strong>Verb</strong></p><ul><li>(used with object) cali·brat·ed, cali·brat·ing.</li><li>To determine, check, or rectify the graduation of (any instrument giving quantitative measurements).</li><li>To divide or mark with gradations, graduations, or other indexes of degree, quantity, etc., as on a thermometer, measuring cup, or the like.</li><li>To determine the correct range for (an artillery gun, mortar, etc.) by observing where the fired projectile hits.</li><li>To plan or devise (something) carefully so as to have a precise use, application, appeal, etc.: a sales strategy calibrated to rich investors.</li></ul>