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]

Moby Thesaurus II by Grady Ward, 1.0:

83 Moby Thesaurus words for "panorama":
   abstract, abstraction, airscape, altarpiece, block print,
   cityscape, cloudscape, collage, color print, compass, copy,
   cosmorama, cyclorama, daub, dimensions, diorama, diptych, display,
   engraving, exhibit, exhibition, exposition, extent, fresco,
   georama, icon, illumination, illustration, image, landscape,
   light show, likeness, lookout, miniature, montage, mosaic, mural,
   myriorama, orbit, outlook, pageant, pageantry, parade, perspective,
   phantasmagoria, photograph, picture, pomp, presentation, print,
   prospect, psychedelic show, purview, radius, reach, representation,
   reproduction, riverscape, scape, scene, scenery, scenic view,
   scope, seascape, shifting scene, show, sight, skyscape, spectacle,
   stage show, stained glass window, stencil, still life, sweep,
   tableau, tableau vivant, tapestry, townscape, triptych, view,
   vista, wall painting, waterscape