D defs.my
Entry 2 senses Webster, 1913

Quartet

/kwôr-tĕt'/ · Quar·tet · IPA /kwɔː(ɹ)ˈtɛt/
01 n. A composition in four parts, each performed by a single voice or instrument.
  1. 1.
    A composition in four parts, each performed by a single voice or instrument.(Mus.)
  2. 2.
    A stanza of four lines.(Poet.)