1.One who, or that which, generates, begets, causes, or produces.
2.An apparatus in which vapor or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort, or vessel for generating carbonic acid gas, etc.
3.(Mus.) The principal sound or sounds by which others are produced; the fundamental note or root of the common chord; called also generating tone.
4.(Elec.) Any machine that transforms mechanical into electrical energy; a dynamo.
5.(Math.) A mathematical entity which, when subjected to an operation, yields another mathematical entity; also, a generatrix.
