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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
In addition to helping the researchers nail down the nebula's ellipsoidal structure, the 3D model also confirmed that the stellar corpse of the bygone star known as a white dwarf, which is seen as the tiny white dot within the nebula, is indeed located at its center.
—Sharmila Kuthunur, Space.com, 20 Jan. 2025
It's believed that a dead stellar remnant, or white dwarf, could be spinning precariously on the edge of the black hole, causing the explosions of high-energy light.
—Eric Lagatta, USA TODAY, 14 Jan. 2025
The white dwarf could be shedding matter and triggering the pulses observed by the researchers.
—Sara Hashemi, Smithsonian Magazine, 14 Jan. 2025
Meanwhile, the white dwarf, a stellar remnant that has burned through its fuel, is steadily cooling.
—Jamie Carter, Forbes, 3 Jan. 2025
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Word History
First Known Use
1922, in the meaning defined above
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 30 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
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