uilleann pipes

or uil·lean pipes

[ ahy-luh n ]
/ ˈaɪ lən /

plural noun

Often uilleann pipe. Irish bagpipes held on the knee or under the arms with bellows operated by the elbow.
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British Dictionary definitions for uillean pipes

uillean pipes

/ (ˈɪlɪn, ˈɪlən) /

pl n

bagpipes developed in Ireland and operated by squeezing bellows under the armAlso called: Irish pipes, union pipes

Word Origin for uillean pipes

C19: Irish píob uilleann, from píob pipe + uilleann genitive sing of uille elbow
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012