uilleann pipe[ĭlˈən, -yən]
uilleann pipe definition by American Heritage Dictionary
also uil·lean pipenoun
A Celtic bagpipe whose air supply is produced by a bellows held under the arm and operated by the elbow. Often used in the plural.
Origin: Irish Gaelic, genitive of uillinn, elbow, from Old Irish uilenn; see el- in Indo-European roots.