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mercury-vapor lamp

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mer⋅cu⋅ry-va⋅por lamp

[mur-kyuh-ree-vey-per]
–noun Electricity.
a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc in mercury vapor.

Origin:
1900–05
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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mer·cu·ry-va·por lamp   (mûr'kyə-rē-vā'pər)
n.  A lamp in which ultraviolet and yellowish-green to blue visible light is produced by an electric discharge through mercury vapor.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: mer·cu·ry–va·por lamp
Pronunciation: -"vA-p&r-
Function: noun
: an electric lamp in which the discharge takesplace through mercury vapor and which has been used therapeutically as a source of ultraviolet radiation
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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