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

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According to the study, the first explanation is supermassive black holes found at the heart of galaxies. Nick Butler, FOXNews.com, 28 June 2025 While our home supermassive black hole has a mass 4.3 million times that of the sun, M31* dwarfs it with a mass 100 million times that of the sun. Robert Lea, Space.com, 27 June 2025 The team even encountered a few supermassive black holes, previously invisible to the Hubble telescope. Jay Kakade june 22, New Atlas, 22 June 2025 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 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 Jul. 2025.

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