a white soluble substance used, in the pentahydrate form, in photography as a fixer to dissolve unchanged silver halides and also to remove excess chlorine from chlorinated water. Formula: Na2S2O3 Also called (not in technical usage) sodium hyposulphite, hypo
[trahy-pol-ee-fos-feyt] /ˌtraɪ pɒl iˈfɒs feɪt/ noun, Chemistry. 1. a white powder, Na 5 P 3 O 1 0 , used as a water softener, sequestering agent, and food additive.
- Sodium-vapor lamp
[soh-dee-uh m-vey-per] /ˈsoʊ di əmˌveɪ pər/ noun, Electricity. 1. an electric lamp in which sodium vapor is activated by current passing between two electrodes, producing a yellow, glareless light: used on streets and highways.
- Sodium-vapour lamp
noun 1. a type of electric lamp consisting of a glass tube containing neon and sodium vapour at low pressure through which an electric current is passed to give an orange light. They are used in street lighting
noun 1. sodomite; homosexual. 2. chap; fellow; guy. 3. child; kid; brat. verb (used with object), sodded, sodding. 4. to damn: Sod the bloody bastard! Verb phrases 5. sod off, to leave (usually as an imperative): Why don’t you just sod off! noun 1. a piece of grass-covered surface soil held together by the roots […]