supergiant star

noun

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

Word History and Origins

Origin of supergiant star¹

First recorded in 1925–30

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.

From Washington Post