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neutron star
noun
: 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
Recent Examples on the Web
The most obvious candidate, the team says, is a pulsar – a type of neutron star that produces beams of electromagnetic radiation from its poles.
—Michael Irving, New Atlas, 29 Nov. 2024
New observations of microscopic vortices confirm the existence of a paradoxical phase of matter that may also arise inside neutron stars.
—Quanta Magazine, 6 Nov. 2024
This neutron star is only 12 miles (20 kilometers) from end to end, yet weighs 1 1/2 times our sun.
—Seth Borenstein, San Diego Union-Tribune, 22 Feb. 2024
In this case, the LIGO data analysis programs had concluded from the shape of the gravitational wave front that two in-spiraling and ultimately colliding neutron stars had produced the spacetime blip.
—IEEE Spectrum, 28 Aug. 2019
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Word History
First Known Use
1934, in the meaning defined above
Dictionary Entries Near neutron star
Cite this Entry
“Neutron star.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neutron%20star. Accessed 12 Dec. 2024.
Kids Definition
neutron star
noun
: a very dense object in space that consists of closely packed neutrons and is produced by the collapse of a much larger star
More from Merriam-Webster on neutron star
Thesaurus: All synonyms and antonyms for neutron star
Britannica.com: Encyclopedia article about neutron star
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