red giant
noun
: a star that has low surface temperature and a diameter that is large relative to the sun
Examples of red giant in a Sentence
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If that is the case, the Ring Nebula could be a portent of what awaits Earth in around 5 billion years when the sun runs out of fuel for nuclear fusion and puffs out to become a red giant.
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Robert Lea, Space.com, 19 Jan. 2026
Scattered among them are a few yellowish-red giants.
—Michele Laufik, Martha Stewart, 13 Jan. 2026
The background star involved in the event was identified as a red giant, helping to refine the measurements.
—Rupendra Brahambhatt, Interesting Engineering, 3 Jan. 2026
The process of expending off energy makes a dying star what's called a red giant, before the white dwarf remains.
—Keith Matheny, Freep.com, 11 Dec. 2025
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Robert Lea, Space.com, 19 Jan. 2026
Scattered among them are a few yellowish-red giants.
—Michele Laufik, Martha Stewart, 13 Jan. 2026
The background star involved in the event was identified as a red giant, helping to refine the measurements.
—Rupendra Brahambhatt, Interesting Engineering, 3 Jan. 2026
The process of expending off energy makes a dying star what's called a red giant, before the white dwarf remains.
—Keith Matheny, Freep.com, 11 Dec. 2025
See All Example Sentences for red giant
Cite this Entry
“Red giant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20giant. Accessed 30 Jan. 2026.
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