gas constant

constant pressure

constant-bearing guidance / homing / navigation

CV joint (constant velocity)

permanent / constant / standing combat readiness

constant clearance

constant velocity universal joint

constant-area orifice

constant-flow lubrication

constant-horsepower variable-torque output

constant-pressure cycle

constant-rate suspension

correction for cross component of equivalent constant wind

constant-volume combustion

constant deviation

constant pressure altitude

constant pressure surface

constant temperature

constant-level balloon

constant-pressure air

constant-speed propeller

electromagnetic time constant

cell averaging constant false alarm rate

moving target indicator constant false alarm rate

zero-crossing constant false alarm rate

constant false alarm rate (CFAR)

constant false alarm rate (CFAR) detection

constant false-alarm-rate receiver (CFAR)

target constant

declination constant

gas gun; (tear) gas launcher

blister agent/ gas

blood gas