Tympănum
(
τύμπανον).
1.
A tambourine, used more especially at the noisy revels of Dionysus and Cybelé; a
broad rim of wood or metal covered with skin; sometimes also set round with a concave and
semicircular sound-board.
2.
A treadwheel for raising heavy weights and worked by man-power (
Lucret. iv. 907).