Motor \Mo"tor\, n. [L., fr. movere, motum, to move.]
1. One who, or that which, imparts motion; a source of
mechanical power.
2. (Mach.) A prime mover; a machine by means of which a
source of power, as steam, moving water, electricity,
etc., is made available for doing mechanical work.
Source: Webster's Revised Unabridged Dictionary (1913)
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Motor \Mo"tor\, Motory \Mo"to*ry\, Motorial \Mo*to"ri*al\, a.
[L. motorius that has motion. See Motor, n.]
Causing or setting up motion; pertaining to organs of motion;
-- applied especially in physiology to those nerves or nerve
fibers which only convey impressions from a nerve center to
muscles, thereby causing motion.
Source: Webster's Revised Unabridged Dictionary (1913)
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Diesel engine \Die"sel en`gine\ or motor \mo`tor\ [After Dr.
Rudolf Diesel, of Munich, the inventor.]
A type of internal-combustion engine in which the air drawn
in by the suction stroke is so highly compressed that the
heat generated ignites the fuel (usually crude oil), the fuel
being automatically sprayed into the cylinder under pressure.
The Diesel engine has a very high thermal efficiency.
Source: Webster's Revised Unabridged Dictionary (1913)
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