The Collaborative International Dictionary of English v.0.48:

Panorama \Pan`o*ra"ma\, n. [NL., fr. Gr. pa^s, pa^n, all + ?
   that which is seen, a view, fr. ? to see. See Pan-, and
   Wary.]
   [1913 Webster]
   1. A complete view in every direction.
      [1913 Webster]

   2. Hence: A comprehensive survey of a particular topic; also,
      a broad view of the development of a series of events.
      [PJC]

   3. A picture presenting a view of objects in every direction,
      as from a central point.
      [1913 Webster]

   4. A picture representing scenes too extended to be beheld at
      once, and so exhibited a part at a time, by being
      unrolled, and made to pass continuously before the
      spectator.
      [1913 Webster] Panoramic

WordNet (r) 3.0 (2006):

panorama
    n 1: the visual percept of a region; "the most desirable feature
         of the park are the beautiful views" [syn: view,
         aspect, prospect, scene, vista, panorama]
    2: a picture (or series of pictures) representing a continuous
       scene [syn: panorama, cyclorama, diorama]