Duty CycleThe duration and periodicity of the operation of a device.
Dynamic HeadThe pressure equivalent of the velocity of a fluid.
DynamoA machine for converting mechanical energy into electrical energy by magneto-electric induction; may be used as a motor.
DynamometerAn apparatus for measuring force or power, especially the power developed by a motor.
DyneThe absolute centimeter-gram-second unit of force; that force that will impart to a free mass of one gram an acceleration of one centimeter per second per…