Bourdon

n.	1.	A pilgrim's staff.
	1.	(Mus.) A drone bass, as in a bagpipe, or a hurdy-gurdy. See Burden (of a song.

Noun

1.

bourdon - a pipe of the bagpipe that is tuned to produce a single continuous tone Synonyms: drone pipe, drone

bagpipe, drone, drone pipe, pipe, pipes, tabor pipe