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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The radiation and jets can change the way gas is distributed throughout galaxies and feed the formation of stars, which is why supermassive black holes are regarded as giant engines at the centers of galaxies. Ashley Strickland, CNN, 19 Feb. 2025 Whereas supermassive black holes have masses from millions to billions of times that of the sun, the star-snacking stellar black holes at the heart of microquasars have masses of no more than a few hundred solar masses. Robert Lea, Space.com, 19 Feb. 2025 If confirmed, this would make the Large Magellanic Cloud one of the smallest galaxies known to host a supermassive black hole. The Physics Arxiv Blog, Discover Magazine, 11 Feb. 2025 Radio astronomers have also spied much bigger, cooler supermassive black holes weighing millions or billions of times as much as the Sun in the centers of our galaxy and others. Byhannah Richter, science.org, 29 Jan. 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 6 Mar. 2025.

Last Updated: - Updated example sentences
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