Bull-roarer : Definition
Pronunciation : Bull"-roar`er
Part of Speech : n.
Definition : Defn: A contrivance consisting of a slat of wood tied to the end of a thong or string, with which the slat is whirled so as to cause an intermittent roaring noise. It is used as a toy, and among some races in certain religious rites.
Source : Webster's Unabridged Dictionary, 1913