gas giant

[ gas-jahy-uhnt ]

/ ˈgæs ˌdʒaɪ ənt /

noun Astronomy.

a giant planet composed mostly of hydrogen and helium: the two gas giants in our solar system, Jupiter and Saturn, are sometimes called failed stars because their composition is similar to that of stars, but this is largely considered misleading, as gas giants, unlike brown dwarfs, do not form as stars do.

Compare ice giant.

Origin of gas giant

First recorded in 1950–55

Words nearby gas giant

gas fitter, gas fitting, gas furnace, gas gangrene, gas gangrene antitoxin, gas giant, gas-guzzler, gas-guzzler tax, gash, gasholder, gashouse

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

Example sentences from the Web for gas giant

But in the battle of the gas-giant planet, where there was fighting the Kandarians were never less than two to one.
Talents, Incorporated|William Fitzgerald Jenkins
The gas-giant planet far behind, and the only inner one on this side of the sun, would return their pulses only after minutes.
The Aliens|Murray Leinster
The fleet of Kandar came around the gas-giant world and flung itself at the fleet of Mekin.
Talents, Incorporated|William Fitzgerald Jenkins
In the battle of the gas-giant planet, the fleet had fired no more than three or four missiles for every enemy ship destroyed.
Talents, Incorporated|William Fitzgerald Jenkins

It made for a rendezvous over a pole of the gas-giant planet which was the fourth planet from Kandar's sun.
Talents, Incorporated|William Fitzgerald Jenkins

British Dictionary definitions for gas giant

gas giant

noun

one of the four planets in our solar system that are composed chiefly of hydrogen and helium, namely Jupiter, Saturn, Uranus, and Neptune

Word Origin for gas giant

C20: coined by James Blish (1921–75), US science fiction writer

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 gas giant

gas giant

A large, massive, low-density planet composed primarily of hydrogen, helium, methane, and ammonia in either gaseous or liquid state. Gas giants have swirling atmospheres primarily of hydrogen and helium, with no well-defined planetary surface; they are assumed to have rocky cores. They are also characterized by ring systems, although only Saturn's is readily visible from Earth. Our solar system contains four gas giants: Jupiter, Saturn, Uranus, and Neptune. The majority of extrasolar planets discovered so far are the size of the solar system's gas giants, although they orbit their stars much more closely and may differ in composition from ours. Also called Jovian planet Compare terrestrial planet.

单词	gas giant
释义	gas giant [ gas-jahy-uhnt ] / ˈgæs ˌdʒaɪ ənt / noun Astronomy. a giant planet composed mostly of hydrogen and helium: the two gas giants in our solar system, Jupiter and Saturn, are sometimes called failed stars because their composition is similar to that of stars, but this is largely considered misleading, as gas giants, unlike brown dwarfs, do not form as stars do. Compare ice giant. Origin of gas giant First recorded in 1950–55 Words nearby gas giant gas fitter, gas fitting, gas furnace, gas gangrene, gas gangrene antitoxin, gas giant, gas-guzzler, gas-guzzler tax, gash, gasholder, gashouse Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for gas giant But in the battle of the gas-giant planet, where there was fighting the Kandarians were never less than two to one. Talents, Incorporated\|William Fitzgerald Jenkins The gas-giant planet far behind, and the only inner one on this side of the sun, would return their pulses only after minutes. The Aliens\|Murray Leinster The fleet of Kandar came around the gas-giant world and flung itself at the fleet of Mekin. Talents, Incorporated\|William Fitzgerald Jenkins In the battle of the gas-giant planet, the fleet had fired no more than three or four missiles for every enemy ship destroyed. Talents, Incorporated\|William Fitzgerald Jenkins It made for a rendezvous over a pole of the gas-giant planet which was the fourth planet from Kandar's sun. Talents, Incorporated\|William Fitzgerald Jenkins British Dictionary definitions for gas giant gas giant noun one of the four planets in our solar system that are composed chiefly of hydrogen and helium, namely Jupiter, Saturn, Uranus, and Neptune Word Origin for gas giant C20: coined by James Blish (1921–75), US science fiction writer 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 gas giant gas giant A large, massive, low-density planet composed primarily of hydrogen, helium, methane, and ammonia in either gaseous or liquid state. Gas giants have swirling atmospheres primarily of hydrogen and helium, with no well-defined planetary surface; they are assumed to have rocky cores. They are also characterized by ring systems, although only Saturn's is readily visible from Earth. Our solar system contains four gas giants: Jupiter, Saturn, Uranus, and Neptune. The majority of extrasolar planets discovered so far are the size of the solar system's gas giants, although they orbit their stars much more closely and may differ in composition from ours. Also called Jovian planet Compare terrestrial planet. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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