Propeller (?), n.
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1. One who, or that which, propels.
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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.
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Propeller wheel,the screw, usually having two or more blades, used in propelling a vessel.
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