Brǎmčilo (n)
(with) definite article: Brǎmčilotooriginal: бръмчило(то)
From бръмча (brǎmčà [to buzz / drone / hum]).
Atanassov, Vergilij: Gaida (Dudelsack). In: The bagpipes in Europe, 1 (1976), p.40.
Le Gonidec, Marie-Barbara: La cornemuse bulgare. In: Pastel 30 (Toulouse, 1996), ➺ p.25.