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
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Astronomers using the Hubble Space Telescope have discovered that a seemingly ordinary white dwarf star is actually the result of a dramatic stellar merger.
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Sharmila Kuthunur, Space.com, 18 Aug. 2025
The sun blows off its outer layers and the core is exposed to space, transforming into what astronomers call a white dwarf.
—Phil Plait, Scientific American, 3 July 2025
One, a white dwarf star — the dense core of a dead sun-like star — sucks matter onto its surface from the other star until a thermonuclear explosion occurs.
—Jamie Carter, Forbes.com, 2 July 2025
But a major reason why experts have difficulty finding binary star white dwarfs is because of their trademark ultraviolet emissions.
—Andrew Paul Aug 6, Popular Science, 6 Aug. 2025
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Sharmila Kuthunur, Space.com, 18 Aug. 2025
The sun blows off its outer layers and the core is exposed to space, transforming into what astronomers call a white dwarf.
—Phil Plait, Scientific American, 3 July 2025
One, a white dwarf star — the dense core of a dead sun-like star — sucks matter onto its surface from the other star until a thermonuclear explosion occurs.
—Jamie Carter, Forbes.com, 2 July 2025
But a major reason why experts have difficulty finding binary star white dwarfs is because of their trademark ultraviolet emissions.
—Andrew Paul Aug 6, Popular Science, 6 Aug. 2025
See All Example Sentences for white dwarf
Cite this Entry
“White dwarf.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/white%20dwarf. Accessed 27 Aug. 2025.
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