This term generally alludes to the Archimedean screw, or screw-propeller.
·noun One who, or that which, propels. II. Propeller ·noun A steamboat thus propelled; a screw stea...
Webster's Dictionary of the English Language
·add. ·- A propeller screw placed in front of the supporting planes of an aeroplane instead of behin...
A valuable substitute for the cumbersome paddle-wheels as a motive-power for steam-vessels: the Arch...
The Sailor's Word-Book
See screw-propeller. ...