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supermassive star

American  
[soo-per-mas-iv, soo-] / ˈsu pərˈmæs ɪv, ˌsu- /

noun

  1. Astronomy. a star with a mass more than fifty times the mass of the sun.

Etymology

Origin of supermassive star

super- + massive

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

JADES-GS-z14-1 is not resolved, meaning it is consistent with a point source, such as a very distant supermassive star would be.

From Science Daily • Oct. 14, 2025

The black hole that they had confirmed was Cygnus X-1, a binary star consisting of a supermassive star co-orbiting a black hole.

From Salon • Apr. 10, 2019

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.