Definition of supergiant in English:

supergiant

Line breaks: super|giant
Pronunciation: /ˈsuːpədʒʌɪənt
 
, ˈsjuː-/

noun

Astronomy
A very large star that is even brighter than a giant, often despite being relatively cool.
More example sentences
  • It was suggested that the red supergiant orbited a companion star that had shredded its outer layers just before the explosion.
  • This new heat supply causes the outer layers of the star to expand and cool, and the star becomes a red giant, or a red supergiant if it is very massive.
  • In fact, it has become the coolest supergiant star ever found and all because of a single observation made by a dedicated amateur astronomer in Australia.

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Word of the day hubris
Pronunciation: ˈ(h)yo͞obris
noun
excessive pride or self-confidence