n. & v.
n. (pl. choruses) 1 a group (esp. a large one) of singers; a choir. 2 a piece of music composed for a choir. 3 the refrain or the main part of a popular song, in which a chorus participates. 4 any simultaneous utterance by many persons etc. (a chorus of disapproval followed). 5 a group of singers and dancers performing in concert in a musical comedy, opera, etc. 6 Gk Antiq. a in Greek tragedy, a group of performers who comment together in voice and movement on the main action. b an utterance of the chorus. 7 esp. in Elizabethan drama, a character who speaks the prologue and other linking parts of the play. 8 the part spoken by this character.
v.tr. & intr. (of a group) speak or utter simultaneously. chorus girl a young woman who sings or dances in the chorus of a musical comedy etc. in chorus (uttered) together; in unison.
[ L f. Gk khoros ]