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.

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Etymology

Origin of mercury-vapor lamp

First recorded in 1900–05

Example Sentences

At night a large mercury-vapor lamp in the center of the room, supplemented by a number of well-placed incandescent electric lights, gives ample illumination.

From Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man by Benedict, Francis Gano

In ordinary photographic printing tungsten lamps are widely used, but in blue-printing the white flame-arc and the mercury-vapor lamp are generally employed.

From Artificial Light Its Influence upon Civilization by Luckiesh, Matthew

A person's face looks ghastly by the greenish light of a mercury-vapor lamp.

From Common Science by Ritchie, John W. (John Woodside)

A red postage stamp looks greenish gray in the green light of a mercury-vapor lamp.

From Common Science by Ritchie, John W. (John Woodside)