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n. Any musical instrument that produces sound via the vibration of a stretched membrane.

n. a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end

"The drum is a percussion instrument, technically classified as a membranophone, referring to the membrane (drumhead) that's stretched over a shell and stuck to produce sound."

percussion instrument    percussive instrument   

side drum    tambourine    bass drum    bongo drum    tabor    tambour    tabour    bongo    gran casa    tom-tom