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 same happens with a newborn neutron star but on a much grander scale; some pulsars have been measured to spin in excess of 700 times per second. — Robert Lea, Space.com, 2 Oct. 2026

Answering that question would allow astrophysicists to address other mysteries, such as the precise threshold where a neutron star will collapse to form a black hole. — Clara Moskowitz, Scientific American, 28 Sep. 2026

Word History

First Known Use

1934, in the meaning defined above

Rhymes for neutron star

• abattoir
• alcazar
• autocar
• avatar
• belshazzar
• caviar
• caviare
• cinnabar
• commissar
• condylar
• deodar
• handlebar

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