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We found 13 dictionaries with English definitions that include the word heliography: Click on the first link on a line below to go directly to a page where "heliography" is defined. General (11 matching dictionaries) heliography: Collins English Dictionary [home, info] heliography: Wordnik [home, info] heliography: Wiktionary [home, info] Heliography, heliography: Dictionary.com [home, info] heliography: UltraLingua English Dictionary [home, info] Heliography: Wikipedia, the Free Encyclopedia [home, info] Heliography: Online Plain Text English Dictionary [home, info] heliography: Webster's Revised Unabridged, 1913 Edition [home, info] Heliography: AllWords.com Multi-Lingual Dictionary [home, info] heliography: Free Dictionary [home, info] heliography: Dictionary/thesaurus [home, info] Computing (1 matching dictionary) heliography: Encyclopedia [home, info] Medicine (1 matching dictionary) heliography: online medical dictionary [home, info]

Quick definitions (heliography) (n.) An early photographic process invented by Nicephore Niepce, and still used in photo-engraving. It consists essentially in exposing under a design or in a camera a polished metal plate coated with a preparation of asphalt, and subsequently treating the plate with a suitable solvent. The light renders insoluble those parts of the film which is strikes, and so a permanent image is formed, which can be etched upon the plate by the use of acid. (n.) Photography. (n.) The description of the sun. (n.) The system, art, or practice of telegraphing, or signaling, with the heliograph. (This definition is from the 1913 Webster's Dictionary and may be outdated.)