coun - cup
- count forward
- count reverse
- counter screw
- counter type adder
- counter-casing
- counter-centre
- counter-rotating free turbine
- counter-rotating propellers
- counter-rotating rotors
- counter-time
- counteract
- counteract the rotor torque
- counteract the tendency to roll
- counteracted the rotor torque
- counteracting force
- counteracting the rotor torque
- counterbalance force
- counterbalance spring cartridge
- counterbalance valve
- counterbore
- counterbored
- counterboring
- counterclaim
- counterclockwise reading
- counterflow
- counterflow cooling
- counterforce
- counterresponse
- countersank
- countershaft
- countersink
- countersinking
- countersunk
- countersunk head screw
- countersunk washer
- countervail
- countervailed
- countervailing
- counterweight
- counting cell
