bourdon n 1: a pipe of the bagpipe that is tuned to produce a single continuous tone [syn: {drone}, {drone pipe}, {bourdon}]
Bourdon \Bour"don\, n. [F., fr. L. burdo mule, esp. one used for carrying litters. Cf. Sp. muleta a young she mule; also, crutch, prop.] A pilgrim's staff. [1913 Webster]
Bourdon \Bour"don`\, n. [F. See {Burden} a refrain.] (Mus.) (a) A drone bass, as in a bagpipe, or a hurdy-gurdy. See {Burden} (of a song.) (b) A kind of organ stop. [1913 Webster]