From The Collaborative International Dictionary of English v.0.48:

Photography \Pho*tog"ra*phy\, n. [Photo- + -graphy: cf. F.
   photographie.]
   1. The science which relates to the action of light on
      sensitive bodies in the production of pictures, the
      fixation of images, and the like. The production of
      pictures by the photochemical action of light on films of
      chemicals sensitive to light, and also the production of
      electronic images in electronic cameras, are both
      considered types of photography.
      [1913 Webster]

   2. The art or process of producing pictures by this action of
      light.
      [1913 Webster]

   Note: In traditional photography, the well-focused optical
         image is thrown on a surface of metal, glass, paper, or
         other suitable substance, coated with collodion or
         gelatin, and sensitized with the chlorides, bromides,
         or iodides of silver, or other salts sensitive to
         light. The exposed plate is then treated with reducing
         agents, as pyrogallic acid, ferrous sulphate, etc., to
         develop the latent image. The image is then fixed by
         washing off the excess of unchanged sensitive salt with
         sodium hyposulphite (thiosulphate) or other suitable
         reagents.
         [1913 Webster]

   color photography, the production of colored images by a
      photographic process. A variety of dyes are used to
      produced the colored images in photochemical processes.
      Such processes may or may not use silver to produce the
      colored image. Color photographs may also be produced by
      electronic cameras.
      [PJC]

From WordNet (r) 2.0:

photography
     n 1: the act of taking and printing photographs [syn: picture
          taking]
     2: the process of producing images of objects on photosensitive
        surfaces
     3: the occupation of taking and printing photographs or making
        movies

From Moby Thesaurus II by Grady Ward, 1.0:

115 Moby Thesaurus words for "photography":
   X-ray photography, abstract art, aerial photography,
   aerophotography, albertype, art, art form, artist, arts and crafts,
   arts of design, astrophotography, book printing, calligraphy,
   candid photography, cave art, ceramics, chromotypography,
   chromotypy, chromoxylography, chronophotography, cinematography,
   collotype, color photography, color printing, decoration, design,
   designing, drawing, electron optics, electronography,
   electrophotography, electrostatic printing, engraving, etching,
   fine arts, folk art, graphic artist, graphic arts, graphics,
   gravure, halftone engraving, history of printing, holography,
   infrared photography, infrared spectroscopy, integral photography,
   job printing, laser photography, letterpress,
   letterpress photoengraving, line engraving, lithography,
   lithogravure, lithophotogravure, microphotography, microscopics,
   microscopy, mimeograph, offset, offset lithography, onset,
   optical physics, optics, optometry, painting, palaeotypography,
   phonophotography, photo-offset, photochemical process,
   photoengraving, photogelatin process, photographic reproduction,
   photoheliography, photolithography, photomacrography,
   phototypography, phototypy, photozincography,
   planographic printing, planography, plastic art, primitive art,
   printing, printmaking, publication, publishing, pyrophotography,
   radiography, relief printing, relief-carving, rotary photogravure,
   rotogravure, sculpture, sheetwork, spectroheliography,
   spectrometry, spectrophotography, spectrophotometry, spectroscopy,
   stencil, stereophotography, stereoscopy, telephotography,
   telescopy, the arts, three-color printing, two-color printing,
   typography, typolithography, uranophotography, wood-block printing,
   xerography, xeroprinting, xylotypography, zincography