Quar*tet", Quar*tette" (?), n. [It. quartetto, dim. of quarto the fourth, a fourth part, fr. L. quartus the fourth. See Quart.]
1. Mus. (a)
A composition in four parts, each performed by a single voice or instrument.
The set of four person who perform a piece of music in four parts.
A stanza of four lines.
© Webster 1913.