neutron star

noun

Definition of neutron star 

: a dense celestial object that consists primarily of closely packed neutrons and that results from the collapse of a much larger stellar body

Examples of neutron star in a Sentence

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An international team of astronomers tested the equivalence principle under extreme conditions: a system composed of two superdense stellar corpses known as white dwarfs and an even denser neutron star. Mike Wall, NBC News, "Einstein's theory of relativity passes its toughest test yet," 5 July 2018 Suspects have included neutron stars, gamma ray bursts, hypernovae, and the radiation-spewing black holes at the center of some galaxies, but whatever the source, high energy neutrinos are a likely byproduct. Daniel Clery, Science | AAAS, "Ghostly particle caught in polar ice ushers in new way to look at the universe," 12 July 2018 The neutron star is a fast-spinning type known as a pulsar. Mike Wall, NBC News, "Einstein's theory of relativity passes its toughest test yet," 5 July 2018 Now a new study, published in Nature, has tested the principle using a remarkably extreme astrophysical environment: a triple star system containing two white dwarfs and a pulsar (a rotating neutron star that beams radio waves). James Geach, Scientific American, "Triple-Star Test Shows Einstein Was Right, Again," 5 July 2018 That's about 10 times greater than the pressure seen at the heart of a neutron star. David Grossman, Popular Mechanics, "Pressures Inside a Proton Are More Extreme Than Inside a Neutron Star," 17 May 2018 Now astronomers have found one of the largest neutron stars ever discovered. Avery Thompson, Popular Mechanics, "The Largest Neutron Star Ever, Found With a Clever New Technique," 30 May 2018 The results give us one of our first direct tests of competing models for what's beneath the surface of a neutron star. John Timmer, Ars Technica, "Three years of staring lets scientists capture a neutron star “glitch”," 11 Apr. 2018 Neither a neutron star so massive nor a black hole with such a low mass has ever been discovered. Laney Ruckstuhl, BostonGlobe.com, "Cambridge NASA observatory data reveals what is probably lowest-mass black hole ever seen," 7 June 2018

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

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First Known Use of neutron star

1934, in the meaning defined above

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8 Oct 2018

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The first known use of neutron star was in 1934

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