black dwarf

noun

plural black dwarfs

: a very small cooled remnant of white dwarf that emits no detectable light

Example Sentences

Recent Examples on the Web These positrons would ever-so-slowly destroy some of the electrons in a black dwarf’s center and weaken its degeneracy pressure.

Adam Mann, Science | AAAS, 11 Aug. 2020 But eventually, these relics cool off and become a black dwarf.

Adam Mann, Science | AAAS, 11 Aug. 2020 These tiny, denser stellar husks eventually fade into elusive black dwarf stars, which are nearly undetectable by astronomers.

Jennifer Leman, Popular Mechanics, 13 June 2020 Right before either going supernova or turning into a black dwarf, dying stars turn into white dwarves.

Jennifer Leman, Popular Mechanics, 1 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'black dwarf.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.