supergiant

[ soo-per-jahy-uhnt ]

/ ˈsu pərˌdʒaɪ ənt /

noun

Astronomy. supergiant star.

an extremely large or powerful person, company, thing, etc.

adjective

extremely large; immense.

Origin of supergiant

First recorded in 1925–30; super- + giant

Words nearby supergiant

superfund, superfuse, Super-G, supergalaxy, supergene, supergiant, super giant slalom, supergiant star, superglacial, Super Glue, supergovernment

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for supergiant

supergiant

/ (ˈsuːpəˌdʒaɪənt) /

noun

any of a class of extremely large and luminous stars, such as Betelgeuse, which have expanded to a large diameter and are eventually likely to explode as supernovaeCompare giant star, white dwarf

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for supergiant

supergiant

[ sōō′pər-jī′ənt ]

A star that is larger, brighter, and more massive than a giant star, being thousands of times brighter than the Sun and having a relatively short lifespan-only about 10 to 50 million years as opposed to around 5 billion years for the Sun. Supergiants, such as Betelgeuse and Rigel in Orion, are only found in young cosmic structures such as the arms of spiral galaxies. Red supergiants such as Betelgeuse are late-stage stars, having burned most of their hydrogen in an earlier stage as main-sequence stars, and now fuse helium into heavier elements through the triple alpha process. Blue supergiants such as Rigel are thought to have evolved from red giants, though some are considered main-sequence stars. Supergiants are thought to eventually undergo a supernova, ending up as neutron stars or black holes.

单词	supergiant
释义	supergiant [ soo-per-jahy-uhnt ] / ˈsu pərˌdʒaɪ ənt / noun Astronomy. supergiant star. an extremely large or powerful person, company, thing, etc. adjective extremely large; immense. Origin of supergiant First recorded in 1925–30; super- + giant Words nearby supergiant superfund, superfuse, Super-G, supergalaxy, supergene, supergiant, super giant slalom, supergiant star, superglacial, Super Glue, supergovernment Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for supergiant supergiant / (ˈsuːpəˌdʒaɪənt) / noun any of a class of extremely large and luminous stars, such as Betelgeuse, which have expanded to a large diameter and are eventually likely to explode as supernovaeCompare giant star, white dwarf Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for supergiant supergiant [ sōō′pər-jī′ənt ] A star that is larger, brighter, and more massive than a giant star, being thousands of times brighter than the Sun and having a relatively short lifespan-only about 10 to 50 million years as opposed to around 5 billion years for the Sun. Supergiants, such as Betelgeuse and Rigel in Orion, are only found in young cosmic structures such as the arms of spiral galaxies. Red supergiants such as Betelgeuse are late-stage stars, having burned most of their hydrogen in an earlier stage as main-sequence stars, and now fuse helium into heavier elements through the triple alpha process. Blue supergiants such as Rigel are thought to have evolved from red giants, though some are considered main-sequence stars. Supergiants are thought to eventually undergo a supernova, ending up as neutron stars or black holes. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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