Cycle

—1. A series of operations forming a closed circle, a fresh series beginning where another ends; as exemplified in the course of the steam with a marine engine, it being generated in the boilers, pa ing through pipes to the engines, doing work succe ively in the various cylinders, by virtue of the elastic force stored in it while being formed; escaping at a low exhaust pre ure to the condenser, where it is converted into water, and as such, returned to the boiler once more. ` 2. The cycle of operations within the cylinder: of an internal combustion motor; termed two cycle or four cycle on account of the number of strokes of the piston required to complete the series in each case.