n. A series of musical variations for the bagpipes, usually martial or funerary in nature.
the GNU version of the Collaborative International Dictionary of English
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.
The Century Dictionary and Cyclopedia
n. A wild, irregular kind of music, peculiar to the Scottish Highlands, performed upon the bagpipe.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. martial music with variations; to be played by bagpipes
Word Usage
"To this opinion Dr. Beattie has given his suffrage, in that following elegant passage: -- 'A pibroch is a species of tune, peculiar, I think, to the Highlands and Western Isles of Scotland."