n. 1 a regular group of singers, esp. taking part in church services. 2 the part of a cathedral or large church between the altar and the nave, used by the choir and clergy. 3 a company of singers, birds, angels etc. (a heavenly choir). 4 Mus. a group of instruments of one family playing together. choir organ the softest of three parts making up a large organ having its row of keys the lowest of the three. choir-stall = STALL(1) n. 3a.
[ ME f. OF quer f. L chorus: see CHORUS ]