noun, plural drums, (especially collectively for 11) drum.
a musical percussion instrument consisting of a hollow, usually cylindrical, body covered at one or both ends with a tightly stretched membrane, or head, which is struck with the hand, a stick, or a pair of sticks, and typically produces a booming, tapping, or hollow sound.
any hollow tree or similar object or device used in this way.
the sound produced by such an instrument, object, or device.
any rumbling or deep booming sound.
a natural organ by which an animal produces a loud or bass sound.