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

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Such white dwarf stars are the hot, glowing stellar cores left behind when dying sunlike stars blow off their outer layers. —

Tom Metcalfe, Scientific American, 31 Oct. 2024 Scientists are hoping to study the nova to discover what happens when the material is blasted from the white dwarf and distributed into neighboring galaxies, Boyd said. —

Julia Jacobo, ABC News, 31 Oct. 2024 Hounsell said white dwarf stars aren't much larger in size than planet Earth. —

John Tufts, The Indianapolis Star, 6 Sep. 2024 The nova, also referred to as a thermonuclear explosion, occurs when enough material from the red giant builds up in the white dwarf to power a bright outburst. —

Alexa Robles-Gil, Smithsonian Magazine, 7 Oct. 2024 See all Example Sentences for white dwarf