bevel gear n 1: gears that mesh at an angle [syn: {bevel gear}, {pinion and crown wheel}, {pinion and ring gear}]
Bevel gear \Bev"el gear`\ (Mech.) A kind of gear in which the two wheels working together lie in different planes, and have their teeth cut at right angles to the surfaces of two cones whose apices coincide with the point where the axes of the wheels would meet. [1913 Webster]