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⇱ neutron star - WordReference.com Dictionary of English


WordReference Random House Unabridged Dictionary of American English © 2026
neu′tron star′, n. 
  1. Astronomyan extremely dense, compact star composed primarily of neutrons, esp. the collapsed core of a supernova.
  • 1930–35

Collins Concise English Dictionary © HarperCollins Publishers::
neutron star n
  1. a star that has collapsed under its own gravity to a diameter of about 10 to 15 km. It is composed mostly of neutrons, has a mass of between 1.4 and about 3 times that of the sun, and a density in excess of 1017 kilograms per cubic metre
'neutron star' also found in these entries (note: many are not synonyms or translations):

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