sodium lamp
noun
variants
or less commonly sodium-vapor lamp
plural sodium lamps also sodium-vapor lamps
: an electric lamp that contains sodium vapor and electrodes between which a luminous discharge takes place and that is used especially for lighting highways
Examples of sodium lamp in a Sentence
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By 2013, the Bureau of Street Lighting had swapped more than half of the city’s 220,000 high-pressure sodium lamps with LED bulbs, and the department has systematically converted the rest in the years since.
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Los Angeles Times, 8 May 2026
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Los Angeles Times, 8 May 2026
Cite this Entry
“Sodium lamp.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sodium%20lamp. Accessed 13 May. 2026.
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