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mercury-vapor lamp

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

First recorded in 1900–05
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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