mercury-vapour lamp

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mercury-vapour lamp

n
(General Physics) a lamp in which an electric discharge through a low pressure of mercury vapour is used to produce a greenish-blue light. It is used for street lighting and is also a source of ultraviolet radiation
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References in periodicals archive
Solihull Council is replacing 5,374 of its old mercury-vapour lamps with new, energy efficient LED lamps.
Shining bright with new street lights
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