power wheels

Noun

power wheel (plural power wheels)

1. (US, obsolete) A kind of gear in a gun or torpedo mount.
   • The motor used for giving motion to the power-wheel of the torpedo must, when installed in the service manner, be capable of giving the required speed of rotation to the wheel within one minute of its application.1889, Lieutenant J. T. Newton, “Torpedoes”, in Navy Department, Bureau of Navigation, Office of Naval Intelligence, editor, Naval Mobilization and Improvement in Matériel (General Information Series....
2. (US, rare) An ab wheel (trademark by Lifeline Fitness).
   • The Power Wheel pike and power wheel knee-up exercises started and ended with the subject in the push-up position (trunk, hips, knees, and elbows in full extension, shoulders flexed 90°, and hands on the floor approximately a shoulder width apart), the feet above the floor and attached to Power...2006, Rafael F Escamilla, Eric Babb, Ryan DeWitt, Patrick Jew, Patrick Kelleher, Toni Burnham, Juliann Busch, Kristen D'Anna, Ryan Mowbray, Rodney T Imamura, “Electromyographic analysis of...