12-Letter Words Containing: A,D,E,E,F,I,R,T

• transport (cargo) by air

• furnished with or authorized by a certificate:

• 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

• lacking conviction or boldness or courage

• To inflate excessively; to provide too much inflation

• Inflated; exaggerated

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