to distinguish or mark by a specific difference; to effect a difference in, as regards classification; to develop differential characteristics in; to specialize; to desynonymize.-to express the specific difference of; to describe the properties of (a thing) whereby it is differenced from another of the same class; to discriminate.-to obtain the differential, or differential coefficient, of; as, to differentiate an algebraic expression, or an equation.-to acquire a distinct and separate character.