Bellows

n. sing. & pl.
  1. An instrument, utensil, or machine, which, by alternate expansion and contraction, or by rise and fall of the top, draws in air through a valve and expels it through a tube for various purposes, as blowing fires, ventilating mines, or filling the pipes of an organ with wind.
    2. Bellows camera ,
    in photography, a form of camera, which can be drawn out like an accordion or bellows.
    Hydrostatic bellows .
    See Hydrostatic.
    A pair of bellows ,
    the ordinary household instrument for blowing fires, consisting of two nearly heart-shaped boards with handles, connected by leather, and having a valve and tube.