white dwarf

noun

plural white dwarfs
Synonyms of white dwarfnext
: 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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The shedding creates a region of dust and gas around the star’s core — a white dwarf. Avni Trivedi, CNN Money, 8 June 2026 This would trigger explosive outbursts on the white dwarf, which would be seen across the galaxy as a nova eruption. Keith Cooper, Space.com, 3 June 2026 In the center is a white dwarf, the dense, compact core of a dying star. Adam Kovac, Scientific American, 24 Apr. 2026 Once a star dies, there are a number of possible fates that can ensue as well, as a stellar corpse can remain as a white dwarf, a neutron star, or a black hole. Big Think, 14 Apr. 2026 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

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Cite this Entry

“White dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20dwarf. Accessed 17 Jun. 2026.

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

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