The Collaborative International Dictionary of English v.0.48:

Camera \Cam"e*ra\, n.; pl. E. Cameras, L. Camerae. [L.
   vault, arch, LL., chamber. See Chamber.]
   A chamber, or instrument having a chamber. Specifically: The
   camera obscura when used in photography. See Camera, and
   Camera obscura.
   [1913 Webster]

   Bellows camera. See under Bellows.

   In camera (Law), in a judge's chamber, that is, privately;
      as, a judge hears testimony which is not fit for the open
      court in camera.

   Panoramic camera, or Pantascopic camera, a photographic
      camera in which the lens and sensitized plate revolve so
      as to expose adjacent parts of the plate successively to
      the light, which reaches it through a narrow vertical
      slit; -- used in photographing broad landscapes. --Abney.
      [1913 Webster]

WordNet (r) 3.0 (2006):

camera
    n 1: equipment for taking photographs (usually consisting of a
         lightproof box with a lens at one end and light-sensitive
         film at the other) [syn: camera, photographic camera]
    2: television equipment consisting of a lens system that focuses
       an image on a photosensitive mosaic that is scanned by an
       electron beam [syn: television camera, tv camera,
       camera]