1. (n.) The science which relates to the action of light on sensitive bodies in the production of pictures, the fixation of images, and the like.

2. (n.) The art or process of producing pictures by this action of light.

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