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mercury-vapor lamp

American  
[mur-kyuh-ree-vey-per] / ˈmɜr kyə riˌveɪ pər /

noun

Electricity.

  1. a lamp producing a light with a high actinic and ultraviolet content by means of an electric arc in mercury vapor.

Etymology

Origin of mercury-vapor lamp

First recorded in 1900–05

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.