protogalaxy

noun

pro·​to·​gal·​axy ˌprō-tō-ˈga-lək-sē How to pronounce protogalaxy (audio)
: a cloud of gas believed to be the precursor to a galaxy

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of protogalaxy was in 1950

Dictionary Entries Near protogalaxy

protofascist

protogalaxy

Protogasteraceae

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Cite this Entry

“Protogalaxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protogalaxy. Accessed 21 Nov. 2024.

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More from Merriam-Webster on protogalaxy

Britannica.com: Encyclopedia article about protogalaxy

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