- a device for producing a strong current of air, consisting of a chamber that can be expanded to draw in air through a valve and contracted to expel it through a tube.
- anything resembling or suggesting bellows in form, as the collapsible part of a camera or enlarger.
- the lungs.
- U.S. painter and lithographer.
- an instrument consisting of an air chamber with flexible sides or end, a means of compressing it, an inlet valve, and a constricted outlet that is used to create a stream of air, as for producing a draught for a fire or for sounding organ pipes
- a telescopic light-tight sleeve, connecting the lens system of some cameras to the body of the instrument
- a flexible corrugated element used as an expansion joint, pump, or means of transmitting axial motion
