n. A dance. Specifically, in the ancient Greek drama— A dance performed by a number of persons in a ring, in honor of Bacchus, accompanied by the singing of the sacred dithyrambic odes. From this simple rite was developed the Greek drama, In continuation of the early tradition, a company of persons, represented as of age, sex, and estate appropriate to the play, who took part through their leader, the coryphæus, with the actors in the dialogue of a drama, and sang their sentiments at stated intervals when no actor was on the stage.n. One of the songs executed by the chorus.n. In music: A company of singers, especially an organized company, such as singers in a church or a choral society, In an oratorio, opera, or concert, the general company of singers, as distinguished from the soloists, A part of a song in which the listeners join with the singer; a refrain; also, any recurring refrain or burden, A musical composition intended to be sung in harmony by a company of singers, usually by four voices. A double chorus is for eight voices, The compound or mixture stops of an organ. In the tenth century, an instrument, probably the bagpipe, In the fifteenth century, the drone of a bagpipe or of the accompaniment strings of the crowd. Formerly, in Scotland, a loud trumpet.n. A union of voices or sounds, or a company of persons, resembling a chorus.n. In zoology, a genus of mollusks.To sing or join in the chorus of: as, to chorus a song.To exclaim or call out in concert.