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Noun: sodium-vapor lamp  'sow-dee-um,vey-pur
Usage: US (elsewhere: sodium-vapour lamp)
  1. Lamp in which an electric current passed through a tube of sodium vapor makes a yellow light; used is street lighting
    - sodium-vapour lamp [Brit, Cdn]

Derived forms: sodium-vapor lamps

Type of: lamp

Encyclopedia: Sodium-vapor lamp