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Los Alamos

geographical name

Los Al·​a·​mos lȯs-ˈa-lə-ˌmōs How to pronounce Los Alamos (audio)
unincorporated settlement that is on a mesa in north central New Mexico where the first atomic bombs were developed and is now the site of the primary nuclear research center in the U.S. population 12,019

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Cite this Entry

“Los Alamos.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Los%20Alamos. Accessed 2 Dec. 2025.

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