negatives (photographs) <p>Photographs in which the tones or colors are reversed from their appearance in nature, usually on a transparent support of celluloid, acetate, or on paper, intended for the purpose of producing positive prints. For finished prints in which tones or colors are reversed, see "negative prints." When a glass plate is painted or drawn on and a photographic print made from it, use "clichés-verre."</p> <p>Source: Art &amp; Architecture Thesaurus</p> <p>http://vocab.getty.edu/page/aat/300127173</p>