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 The galaxy is estimated to be more than 1,600 light years across, and the light is suspected to be coming from young stars and not emission from a growing supermassive black hole. Greg Wehner, Fox News, 31 May 2024 Chandra’s X-ray data revealed a bright supermassive black hole in this galaxy and suggested that supermassive black holes may form by the collapsing clouds in the early universe. Giuseppina Fabbiano, Discover Magazine, 31 May 2024 Stellar black holes are dwarfed in size by the supermassive black holes inhabiting the center of most galaxies. Will Dunham, The Christian Science Monitor, 19 Apr. 2024 In its recent work, the team managed to deduce a supermassive black hole’s spin by measuring the wobble of its accretion disk after a star has been disrupted—a polite word for torn up—by the gigantic object. Isaac Schultz / Gizmodo, Quartz, 23 May 2024 Nearly every large galaxy has a supermassive black hole at its center. Will Sullivan, Smithsonian Magazine, 17 May 2024 The visualization, produced on a NASA supercomputer, allows users to experience flight towards a supermassive black hole. Kerry Breen, CBS News, 7 May 2024 The new animation doesn’t feature any Hollywood stars; its main character is a supermassive black hole, 4.3 million times the mass of the Sun. Isaac Schultz / Gizmodo, Quartz, 7 May 2024 Second simulation shows viewer narrowly escaping black hole Astronomers divide black holes into three general categories based on mass: stellar-mass, supermassive, and intermediate-mass. Eric Lagatta, USA TODAY, 7 May 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'supermassive.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1937, in the meaning defined above

Time Traveler
The first known use of supermassive was in 1937

Dictionary Entries Near supermassive

Cite this Entry

“Supermassive.” Dictionary, Merriam-Webster, Accessed 14 Jun. 2024.

Last Updated: - Updated example sentences
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