noun, Electricity.
sodium-vapor lamp.
sodium-vapor lamp
[soh-dee-uh m-vey-per] /ˈsoʊ di əmˌveɪ pər/
noun, Electricity.
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.
another name for sodium-vapour lamp


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