Astronomy. an exceptionally luminous star whose diameter is more than 100 times that of the sun, as Betelgeuse or Antares.
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Here is our second set of teacher-selected PSAT vocabulary words. Do you know the meanings of these terms?
Question 1 of 10
Also called supergiant.
Origin of supergiant star
First recorded in 1925–30
Words nearby supergiant star
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020