definition of
drum

[1] #1 drum n. [membranophone, tympan] a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end. wn

[2] #2 drum v. [beat, thrum] make a rhythmic sound; "Rain drummed against the windshield"; "The drums beat all night". wn

[3] #3 drum n. the sound of a drum; "he could hear the drums before he heard the fifes". wn

[4] #4 drum v. play a percussion instrument. wn

[5] #5 drum n. [barrel] a bulging cylindrical shape; hollow with flat ends. wn