[cho.rus] n [L, ring dance, chorus, fr. Gk choros] (1586) 1 a: a company of singers and dancers in Athenian drama participating in or commenting on the action; also: a similar company in later plays b: a character in Elizabethan drama who speaks the prologue and epilogue and comments on the action c: an organized company of singers who sing in concert: choir; esp: a body of singers who sing the choral parts of a work (as in opera) d: a group of dancers and singers supporting the featured players in a musical comedy or revue
2. a: a part of a song or hymn recurring at intervals b: the part of a drama sung or spoken by the chorus c: a composition to be sung by a number of voices in concert d: the main part of a popular song; also: a jazz variation on a melodic theme 3 a: something performed, sung, or uttered simultaneously or unanimously by a number of persons or animals "a ~ of boos" "that eternal ~ of: "Are we there yet?" from the back seat --Sheila More" b: sounds so uttered "visitors are taken to the woods by car to hear the mournful ~es of howling wolves --Bob Gaines" -- in chorus : in unison
[2]chorus vt (1826): to sing or utter in chorus