from
The Collaborative International Dictionary of English v.0.48
Propeller \Pro*pel"ler\, n.
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1. One who, or that which, propels.
[1913 Webster]
2. A contrivance for propelling a steam vessel, usually
consisting of a screw placed in the stern under water, and
made to revolve by an engine; a propeller wheel.
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3. A steamboat thus propelled; a screw steamer.
[1913 Webster]
{Propeller wheel},the screw, usually having two or more
blades, used in propelling a vessel.
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