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supergiant star

American  

noun

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


Etymology

Origin of supergiant star

First recorded in 1925–30

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

When combined with archival observations from the Hubble Space Telescope, the data revealed that the blast originated from a massive red supergiant star wrapped in an unexpected blanket of dust.

From Science Daily Oct. 9, 2025

Supernova 2023ixf may give some much-needed answers on the matter, among the other particulars of how a red supergiant star collapses and ultimately explodes.

From Scientific American Jul. 21, 2023

The previous record-holder, Icarus, also a blue supergiant star spotted by Hubble, formed 9.4 billion years ago.

From Seattle Times Mar. 30, 2022

“Still, more supernovae are expected to take place in the near future, like Antares, a red supergiant star near the edge of the bubble that could go any century now,” Dr. Alves said.

From New York Times Jan. 20, 2022

The cool supergiant star Antares can be seen as a big, reddish patch in the lower-left part of the picture.

From Textbooks Oct. 13, 2016

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