white dwarf

noun

plural white dwarfs
: a small hot whitish star of low intrinsic brightness usually with a mass approximately equal to that of the sun but with a density many times larger

Examples of white dwarf in a Sentence

Recent Examples on the Web
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Their proximity allows material to flow from the subgiant to the white dwarf. Robert Lea, Space.com, 23 Dec. 2024 That appears to be what happened some 4000 light-years away, allowing a planet similar in mass and orbital position to slide twice as far from its star, surviving the star’s expansion into a red giant and subsequent contraction into a white dwarf. Christie Wilcox, science.org, 30 Sep. 2024 At that point, a thermonuclear explosion blasts the remaining material off the white dwarf, and the cycle resets. John Timmer, Ars Technica, 27 Sep. 2024 The Blaze Star has become a white dwarf, which happens when stars have exhausted their nuclear fuels. Julia Jacobo, ABC News, 31 Oct. 2024 See all Example Sentences for white dwarf 

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of white dwarf was in 1922

Dictionary Entries Near white dwarf

Cite this Entry

“White dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20dwarf. Accessed 5 Jan. 2025.

Kids Definition

white dwarf

noun
: a small whitish star of low brightness that has a mass approximately equal to that of the sun but that is many times more dense

More from Merriam-Webster on white dwarf

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