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
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.