bronteum A device used to create the sound of thunder in a musical or dramatic performance; also called a tonitruone. It is usually a large, thin sheet of metal that reverberates when shaken. Found on http://www.wordinfo.info/words/index/info/view_unit/325/
bronteum A device used to create the sound of thunder in a musical or dramatic performance; also called a tonitruone. It is usually a large, thin sheet of metal that reverberates when shaken.