Webster's Revised Unabridged Dictionary · 1913

Pibroch

Pibroch , noun

[Gael. piobaireachd pipe music, from piobair a piper, from pioba pipe, bagpipe, from English. See Pipe, n.]

A Highland air, suited to the particular passion which the musician would either excite or assuage; generally applied to those airs that are played on the bagpipe before the Highlanders when they go out to battle. — Jamieson