12-Letter Words Containing: IFFER_

• To distinguish or differentiate.

• unbiased impartial unconcern

• apathy demonstrated by an absence of emotional reactions

• the trait of lacking enthusiasm for or interest in things generally

• the trait of remaining calm and seeming not to care; a casual lack of concern

• relating to or showing a difference

• involving or containing one or more derivatives

• the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx

• a quality that differentiates between similar things

• a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves

• A distinguishing feature which marks a species off from other members of the same genus.