1. An instrument or machine that by alternate expansion and contraction draws in air through a valve or orifice and expels it through a tube; also; any of various other blowers
3. The pleated expansible part in a camera; also; a metallic or plastic flexible and expansible vessel
4. A mechanical device that blows air onto a fire to make it burn more fiercely; SYN. blower.
A device that produces a current of air.