a type of electric lamp consisting of a glass tube containing neon and sodium vapour at low pressure through which an electric current is passed to give an orange light. They are used in street lighting
Examples of 'sodium lamp' in a sentence
sodium lamp
The sodium lamps, like canopies along the median of the boulevard, are yellow and weak, but these alone stand guard.
The Times Literary Supplement (2014)
Light pollution from sodium lamps in the city 'is a terrible spoiler for astronomers', he said.