Cho·rus n.; pl. Choruses
  1. Antiq. A band of singers and dancers.
     The Grecian tragedy was at first nothing but a chorus of singers.   --Dryden.
  2. Gr. Drama A company of persons supposed to behold what passed in the acts of a tragedy, and to sing the sentiments which the events suggested in couplets or verses between the acts; also, that which was thus sung by the chorus.
  What the lofty, grave tragedians taught
  In chorus or iambic.   --Milton.
  3. An interpreter in a dumb show or play. [Obs.]
  4. Mus. A company of singers singing in concert.
  5. Mus. A composition of two or more parts, each of which is intended to be sung by a number of voices.
  6. Mus. Parts of a song or hymn recurring at intervals, as at the end of stanzas; also, a company of singers who join with the singer or choir in singer or choir in singing such parts.
  7. The simultaneous of a company in any noisy demonstration; as, a Chorus of shouts and catcalls.