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(), 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. Mo"tor (), Mo"tory (), Moto"rial ()} 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. Die"sel en°gine or 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. Mo"tor n.A motor car; an automobile. [Colloq.] スポンサード リンク
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