from The Century Dictionary and Cyclopedia
- n. An engine used to drive the screw propeller of a steamer. The commonest type for this service is the vertical, inverted engine, with either compound, triple, or quadruple expansion, although horizontal and inclined engines are sometimes used, as are also single-cylinder engines and tandem engines. The steam-turbine when applied to turn a screw becomes a screw-engine.
Sorry, no etymologies found.