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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The evolution of intelligent life around red dwarf stars is likely to be an uphill slog, due to the demands needed to jumpstart oxygenic photosynthesis.
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Bruce Dorminey, Forbes.com, 15 Sep. 2025
TRAPPIST-1e is the fourth planet in orbit around a red dwarf star called TRAPPIST-1.
—Robert Lea, Space.com, 8 Sep. 2025
This proximity to a red dwarf is problematic, however, as these pipsqueak stars can punch well above their weight by regularly unleashing violent stellar outbursts.
—Jonathan O'Callaghan, Scientific American, 8 Sep. 2025
The problem with hunting for planets orbiting a G2 star is the same reason that most exoplanets have been found swinging around red dwarfs.
—David Szondy
august 14, New Atlas, 14 Aug. 2025
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Bruce Dorminey, Forbes.com, 15 Sep. 2025
TRAPPIST-1e is the fourth planet in orbit around a red dwarf star called TRAPPIST-1.
—Robert Lea, Space.com, 8 Sep. 2025
This proximity to a red dwarf is problematic, however, as these pipsqueak stars can punch well above their weight by regularly unleashing violent stellar outbursts.
—Jonathan O'Callaghan, Scientific American, 8 Sep. 2025
The problem with hunting for planets orbiting a G2 star is the same reason that most exoplanets have been found swinging around red dwarfs.
—David Szondy
august 14, New Atlas, 14 Aug. 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 Sep. 2025.
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