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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By studying this polarization, IXPE can help astronomers probe some of the deepest mysteries of the cosmos, such as why black holes spin, what powers the extreme jets blasting from supermassive black holes, or why pulsars glow so brightly in X-ray light. Brett Tingley, Space.com, 27 Mar. 2026 The clouds of gas and dust surround the supermassive black hole at the galactic dead center. Marcia Dunn, Los Angeles Times, 16 Mar. 2026 In the centers of active galaxies, huge amounts of matter swirl around a central supermassive black hole, forming a dense rotating disk. Rupendra Brahambhatt, Interesting Engineering, 14 Mar. 2026 That team pointed out that a supermassive black hole ramming through space would have a difficult time raising a sufficiently strong wake to collapse gas into stars. Phil Plait, Scientific American, 13 Mar. 2026 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 3 Apr. 2026.

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