red dwarf
noun
: a star having substantially lower surface temperature, intrinsic luminosity, mass, and size than the sun
Examples of red dwarf in a Sentence
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And the odds are in favor of the red dwarf idea, because these dim, cool-burning stars make up about 75% of the stars in our galaxy.
—
Kiona N. Smith, Forbes.com, 11 July 2025
The coolness of red dwarf stars like LHS 2520 means they are often posited as stars likely to host habitable zones.
—Robert Lea, Space.com, 7 July 2025
In each of the binary pairs, one of the stars is a huge giant, way larger and more massive than our sun, and the smaller star is considered a red dwarf, way smaller than our sun.
—Mike Lynch, Twin Cities, 8 June 2025
Astronomers traced a previous detection of a long-period transient, announced in March, to a white dwarf that’s closely orbiting a small, cool red dwarf star.
—Ashley Strickland, CNN Money, 28 May 2025
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Kiona N. Smith, Forbes.com, 11 July 2025
The coolness of red dwarf stars like LHS 2520 means they are often posited as stars likely to host habitable zones.
—Robert Lea, Space.com, 7 July 2025
In each of the binary pairs, one of the stars is a huge giant, way larger and more massive than our sun, and the smaller star is considered a red dwarf, way smaller than our sun.
—Mike Lynch, Twin Cities, 8 June 2025
Astronomers traced a previous detection of a long-period transient, announced in March, to a white dwarf that’s closely orbiting a small, cool red dwarf star.
—Ashley Strickland, CNN Money, 28 May 2025
See All Example Sentences for red dwarf
Cite this Entry
“Red dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20dwarf. Accessed 30 Jul. 2025.
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