two-stroke

This style of motorcycle has a smaller motor, which is usually of the two-stroke type, single cylinder.

American design yields two apparently successful two-stroke cycle aero engines.

On the other hand internal-combustion two-stroke-cycle piston engines had been built and used successfully in a limited way.

A 3-cylinder two-stroke cycle engine therefore has the same capacity to do work as a 6-cylinder four-stroke cycle engine.

Some engines are worked on the "two-stroke-cycle" principle; in this case, there are only two strokes for each impulse.