[1] : The Collaborative International Dictionary of English v.0.48

camera obscura \cam"era obscu"ra\ ll. camera chamber + l.
   obscurus, obscura, dark. opt.
   1. an apparatus in which the images of external objects,
      formed by a convex lens or a concave mirror, are thrown on
      a paper or other white surface placed in the focus of the
      lens or mirror within a darkened chamber, or box, so that
      the outlines may be traced.
      1913 webster

   2. photog. an apparatus in which the image of an external
      object or objects is, by means of lenses, thrown upon a
      sensitized plate or surface placed at the back of an
      extensible darkened box or chamber variously modified; --
      commonly called simply the camera.
      1913 webster
see also:
the camera 

[2] : WordNet (r) 2.0

camera obscura
     n : a darkened enclosure in which images of outside objects are
         projected through a small aperture or lens onto a facing
         surface

Camera Obscura >> C Words
Camera Obscura, definition of term: Camera Obscura
camera+obscura_pag1.html

Camera >> C Words
Camera, definition of term: Camera
camera_pag1.html

Camera Lens >> C Words
Camera Lens, definition of term: Camera Lens
camera+lens_pag1.html

Camera Ready >> C Words
Camera Ready, definition of term: Camera Ready
camera+ready_pag1.html

Polaroid Camera >> P Words
Polaroid Camera, definition of term: Polaroid Camera
polaroid+camera_pag1.html

In Camera >> I Words
In Camera, definition of term: In Camera
in+camera_pag1.html