bronteion : bron-TEH-i-on

(Greek; pl. bronteia: thunder-making device). Roman theatres inherited various acoustic and mechanical devices from Greek theatrical tradition to enhance dramatic performances. One such device was the bronteion, a apparatus used to create the sound of thunder during plays. The bronteion typically consisted of bronze vessels, metal sheets, or stones that could be shaken, struck, or rolled to produce thunderous sound effects. This sound device was positioned backstage or in the upper levels of the scaenae frons (stage building) where operators could create realistic thunder sounds to accompany storm scenes or divine appearances in theatrical productions. The term derives from the Greek bronte meaning “thunder,” reflecting its specific acoustic function in ancient theatrical performance.