Gēn'er-ā'tor, n.

n. [Lat., from generare; It. generatore, Fr. générateur.]

1. One who, or that which, generates, begets, causes, or produces.
2. A vessel in which steam is generated. Perkins.
3. (Mus.) The principal sound or sounds by which others are produced; the fundamental note of the common chord;—called also generating tone.