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sodium-vapor lamp


from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. An electric lamp containing a small amount of sodium and neon gas, used in generating yellow light for lighting streets and highways.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. lamp in which an electric current passed through a tube of sodium vapor makes a yellow light; used is street lighting


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