supermassive

adjective

su·​per·​mas·​sive ˌsü-pər-ˈma-siv How to pronounce supermassive (audio)
: having a very large mass : extremely or extraordinarily massive
a supermassive black hole

Examples of supermassive in a Sentence

Recent Examples on the Web
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Radio galaxies are galaxies dominated by feeding supermassive black holes that launch out powerful jets of matter at near-light speeds. Robert Lea, Space.com, 20 June 2025 Quasars are the conspicuously bright cores of remote galaxies that harbor actively feeding supermassive black holes. Lee Billings, Scientific American, 18 June 2025 Galaxy clusters also contain supermassive black holes that play a major role in the birth of the intercluster medium (ICM), a cornerstone of new star formation that consists of hot plasma that fills the space in between galaxies. Jack Knudson, Discover Magazine, 13 June 2025 There may not yet be telescopes capable of unlocking all the secrets of supermassive black holes, but AI is now on the case. Jorge Garay, Wired News, 11 June 2025 See All Example Sentences for supermassive

Word History

First Known Use

1937, in the meaning defined above

Time Traveler
The first known use of supermassive was in 1937

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Cite this Entry

“Supermassive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/supermassive. Accessed 5 Jul. 2025.

Last Updated: - Updated example sentences
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