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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
In the evening, red giant flying squirrels emerged from their tree holes before sailing from trunk to trunk in the twilight.
—Mihir Zaveri, New York Times, 25 Nov. 2024
However, by then, the sun will have exhausted its hydrogen fuel and be expanding into a red giant star, either consuming Earth or boiling away its oceans.
—Jamie Carter, Forbes, 23 Nov. 2024
Scientists predict that in roughly 6 billion years, the Sun will run out of hydrogen and begin to die, transforming into a red giant.
—Christie Wilcox, science.org, 30 Sep. 2024
The nova, also referred to as a thermonuclear explosion, occurs when enough material from the red giant builds up in the white dwarf to power a bright outburst.
—Alexa Robles-Gil, Smithsonian Magazine, 7 Oct. 2024
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Word History
First Known Use
1929, in the meaning defined above
Dictionary Entries Near red giant
Cite this Entry
“Red giant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20giant. Accessed 30 Dec. 2024.
Kids Definition
red giant
noun
: a very large star with a relatively low surface temperature
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Thesaurus: All synonyms and antonyms for red giant
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