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supergiant star

noun

  1. Astronomy. an exceptionally luminous star whose diameter is more than 100 times that of the sun, as Betelgeuse or Antares.


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Word History and Origins

Origin of supergiant star1

First recorded in 1925–30
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Example Sentences

For insomniacs or predawn risers, the moon and the red supergiant star Antares pair up for a sight to see in the southern sky.

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