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 European Space Agency’s Laser Interferometer Space Antenna (LISA), planned for launch in 2035, will detect the much longer gravitational waves created when mammoth supermassive black holes spiral together and collide. Phil Plait, Scientific American, 15 May 2026 On much larger scales, similar jets from supermassive black holes can heat surrounding gas, generate shock waves, stir turbulence, and even affect star formation across entire galaxies. Rupendra Brahambhatt, Interesting Engineering, 10 May 2026 Visible filaments often emerge from supermassive black holes. Big Think, 4 May 2026 Too rare to explain the abundance of early supermassive black holes seen by JWST. Robert Lea, Space.com, 27 Apr. 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 18 May. 2026.

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