red giantn.

Brit.

/ˌrɛd ˈdʒʌɪənt/, U.S.

/ˌrɛd ˈdʒaɪənt/

Origin: Formed within English, by compounding. Etymons: red adj., giant n.

Etymology: < red adj. + giant n. Compare red dwarf n.

Astronomy.

A massive high-luminosity star that has cooled considerably at a late stage of its evolution, when the supply of hydrogen in the core has been used up. Cf. red dwarf n.

ΘΚΠ

the world > the universe > star > kind of star > giant > [noun] > red

red giant1916

1916 Proc. National Acad. Sci. U.S.A. 2 17 The brightest stars in the cluster are the red and yellow giants.

1929 J. H. Jeans Universe around Us v. 272 The stars of large diameter shewn in the table..are red and have very high luminosities; they are red giants.

1990 R. Rhodes Hole in World i. i. 17 I was saving the story for fiction, a red giant set somewhat near the end of the world, something Wagnerian.

2001 N.Y. Rev. Bks. 15 Nov. 60/4 Our sun will become a red giant like Betelgeuse in about seven billion years.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022).

单词	red giant
释义	red giantn. Brit. /ˌrɛd ˈdʒʌɪənt/, U.S. /ˌrɛd ˈdʒaɪənt/ Origin: Formed within English, by compounding. Etymons: red adj., giant n. Etymology: < red adj. + giant n. Compare red dwarf n. Astronomy. A massive high-luminosity star that has cooled considerably at a late stage of its evolution, when the supply of hydrogen in the core has been used up. Cf. red dwarf n. ΘΚΠ the world > the universe > star > kind of star > giant > [noun] > red red giant1916 1916 Proc. National Acad. Sci. U.S.A. 2 17 The brightest stars in the cluster are the red and yellow giants. 1929 J. H. Jeans Universe around Us v. 272 The stars of large diameter shewn in the table..are red and have very high luminosities; they are red giants. 1990 R. Rhodes Hole in World i. i. 17 I was saving the story for fiction, a red giant set somewhat near the end of the world, something Wagnerian. 2001 N.Y. Rev. Bks. 15 Nov. 60/4 Our sun will become a red giant like Betelgeuse in about seven billion years. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1916
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