drone

drone is a Noun

Definition:

[1] The male of bees, esp. of the honeybee. It gathers no honey. See Honeybee. All with united force combine to drive The lazy drones from the laborious hive. Dryden.

[2] One who lives on the labors of others; a lazy, idle fellow; a sluggard. By living as a drone,to be an unprofitable and unworthy member of so noble and learned a society. Burton.

[3] That which gives out a grave or monotonous tone or dull sound; as:

[4] A drum. [Obs.] Halliwell. (b) The part of the bagpipe containing the two lowest tubes, which always sound the key note and the fifth.

[5] A humming or deep murmuring sound. The monotonous drone of the wheel. Longfellow.

[6] A monotonous bass, as in a pastoral composition.