sodium-vapor lamp
[ soh-dee-uhm-vey-per ]
nounElectricity.
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.
Origin of sodium-vapor lamp
1First recorded in 1935–40
- Also called sodium lamp.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
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