neutron star

== English == === Pronunciation === === Noun === neutron star (plural neutron stars) (astronomy) A degenerate star that has been so collapsed by gravity that its electrons and protons have been merged into neutrons by the intense pressure. The solid mass of neutrons is sometimes called neutronium. ==== Hyponyms ==== magnetar pulsar ==== Derived terms ==== ==== Translations ==== === See also === black hole collapsar quasar