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
Recent Examples on the Web
There are even some wilder suggestions out there, like moving Earth’s orbit farther from the Sun or removing some of the Sun’s mass to tame the red giant.
—
Scott K. Johnson, ArsTechnica, 15 June 2026
Material from the red giant accumulates on the white dwarf until a thermonuclear reaction ignites on its surface, causing a nova explosion.
—Jamie Carter, Forbes.com, 9 June 2026
Another case in point is that VISTA has also detected that older red giant stars in the SMC all seem to have their own bulk motion northward.
—Keith Cooper, Space.com, 7 June 2026
Arcturus is considered a red giant star, around 22 million miles in diameter.
—Mike Lynch, Twin Cities, 31 May 2026
See All Example Sentences for red giant
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Scott K. Johnson, ArsTechnica, 15 June 2026
Material from the red giant accumulates on the white dwarf until a thermonuclear reaction ignites on its surface, causing a nova explosion.
—Jamie Carter, Forbes.com, 9 June 2026
Another case in point is that VISTA has also detected that older red giant stars in the SMC all seem to have their own bulk motion northward.
—Keith Cooper, Space.com, 7 June 2026
Arcturus is considered a red giant star, around 22 million miles in diameter.
—Mike Lynch, Twin Cities, 31 May 2026
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 22 Jun. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
