Rotary may refer to: Science, engineering and technology. Rotary motion. Rotary dial, a rotating telephone dial. Rotary engine (disambiguation), multiple types of engines called "rotary" Rotary latch. Rotary milking shed, a type of milking shed used in the dairy industry. Rotary snowplow, one type of railroad snowplow used especially for deep snow removal. Rotary system, a type of pre-electronic telephone switch. Rotary table (drilling rig), a device used to apply directional force to a drill string. Rotary tiller, a motorised cultivator.
https://en.wikipedia.org/wiki/Rotary