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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In recent years, astronomers analyzing data from the European Space Agency's Gaia spacecraft identified a handful of white dwarfs hurtling through the Milky Way at breakneck speeds of up to 1,240 miles per second (2,000 kilometers per second).
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Sharmila Kuthunur, Space.com, 29 Aug. 2025
In the past, scientists have studied dark matter by observing objects like the sun, neutron stars, and white dwarfs.
—Mrigakshi Dixit, Interesting Engineering, 22 Aug. 2025
What’s left behind is a massive white dwarf with a hydrogen-helium layer that’s 10 billion times thinner than usual, allowing detectable carbon to reach the surface.
—Andrew Paul Aug 6, Popular Science, 6 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
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Sharmila Kuthunur, Space.com, 29 Aug. 2025
In the past, scientists have studied dark matter by observing objects like the sun, neutron stars, and white dwarfs.
—Mrigakshi Dixit, Interesting Engineering, 22 Aug. 2025
What’s left behind is a massive white dwarf with a hydrogen-helium layer that’s 10 billion times thinner than usual, allowing detectable carbon to reach the surface.
—Andrew Paul Aug 6, Popular Science, 6 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
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 9 Sep. 2025.
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