bromide restrainer

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• restrainer — [ri strā′nər] n. 1. a person or thing that restrains 2. Photog. a chemical, such as potassium bromide, added to a developer to retard its action …   English World dictionary

• restrainer — noun a) Something that restrains b) A chemical compound (such as potassium bromide), added to a developer to prevent fogging …   Wiktionary

• restrainer — /rəˈstreɪnə/ (say ruh straynuh) noun 1. someone or something that restrains. 2. a chemical, as potassium bromide, added to a photographic developer to retard its action …  

• restrainer — noun 1. a chemical that is added to a photographic developer in order to retard development and reduce the amount of fog on a film • Hypernyms: ↑chemical, ↑chemical substance • Hyponyms: ↑potassium bromide 2. a person who directs and restrains •… …   Useful english dictionary

• potassium bromide — noun a white crystalline salt (KBr) used as a sedative and in photography • Hypernyms: ↑salt, ↑restrainer * * * noun : a crystalline salt KBr having a biting saline taste that is used chiefly in medicine as a sedative, in photography for making… …   Useful english dictionary

• photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

• Photographic emulsion — is a layer of light sensitive material coated onto a substrate. In Silver gelatin photography, the emulsion consists of silver halide crystals suspended in gelatin, and the substrate may be glass, plastic film, paper or fabric. In proper chemical …   Wikipedia