white dwarf

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noun Astronomy.

a star, approximately the size of the earth, that has undergone gravitational collapse and is in the final stage of evolution for low-mass stars, beginning hot and white and ending cold and dark (black dwarf ).

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Compare Chandrasekhar limit.

Origin of white dwarf

First recorded in 1920–25

Words nearby white dwarf

white currant, whited, white damp, whited sepulcher, whited sepulchre, white dwarf, white elephant, white ensign, white-eye, white-eyed vireo, whiteface

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use white dwarf in a sentence

The breakdown of the 114th Congress is 80 percent white, 80 percent male, and 92 percent Christian.
The Unbearable Whiteness of Congress|Dean Obeidallah|January 8, 2015|DAILY BEAST
If Congress accurately reflected our nation on the basis of race, about 63 percent would be white, not 80 percent.
The Unbearable Whiteness of Congress|Dean Obeidallah|January 8, 2015|DAILY BEAST
There were rumors of shrieks and flashes emanating from the well, and reports of a figure in white.
New York’s Most Tragic Ghost Loves Minimalist Swedish Fashion|Nina Strochlic|January 8, 2015|DAILY BEAST
The FBI raided his home in 2000 with an affidavit questioning his use of $200,000 from his white supremacist fundraising.
The Price of Steve Scalise’s Silence|Jason Berry|January 7, 2015|DAILY BEAST

But after winning 55 percent of the white vote, Duke had a database of supporters some politicians coveted.
The Price of Steve Scalise’s Silence|Jason Berry|January 7, 2015|DAILY BEAST
And she would be wearing some of the jewels with the white dress—just a few, not many, of course.
Rosemary in Search of a Father|C. N. Williamson
None other would dare to show herself unveiled to a stranger, and a white man at that.
The Red Year|Louis Tracy
One would not have wanted her white neck a mite less full or her beautiful arms more slender.
The Awakening and Selected Short Stories|Kate Chopin
That evening in the gondola, with one old and two newer friends, is marked with a white stone in my recollection.
Glances at Europe|Horace Greeley
Why not have sought out the pure white lime-rocks of the flat country, or the grey granite of the hills?
Blackwood's Edinburgh Magazine, Volume 60, No. 372, October 1846|Various

British Dictionary definitions for white dwarf

white dwarf

noun

one of a large class of small faint stars of enormous density (on average 10 8 kg/m³) with diameters only about 1 per cent that of the sun, and masses less than the Chandrasekhar limit (about 1.4 solar masses). It is thought to mark the final stage in the evolution of a sun-like star

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 white dwarf

white dwarf

A small, extremely dense star characterized by high temperature and luminosity. A white dwarf is believed to be in its final stage of evolution, having either used up most of its nuclear fuel in its main-sequence stage, or else moved through a giant stage and shed any remaining fuel in its outer layer as a planetary nebula, leaving only a glowing core. Some 10 percent of all stars in the Milky Way are white dwarfs, but despite their intrinsic luminosity, they are so small that none are visible to the naked eye. See Note at dwarf.

Cultural definitions for white dwarf

white dwarf

A kind of star about the size of the Earth. White dwarfs represent a final stage of the life cycle of stars similar to the sun; they are formed when the stars use up their fuel and can no longer support nuclear reactions.