Definitions

1. noun

a group of people playing drums in unison, typically as part of a marching band or drum corps.

“The drumline performed at the halftime show.”

2. noun

a line of drums, especially those used in a drum corps or marching band.

“The drumline marched across the field, leading the band.”

3. verb

to organize or arrange (a group of drummers) into a drumline.

“The conductor drumlined the new recruits into the marching band.”