plural of neutron

(physics) A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks.

(physics, astronomy) The process, such as within a collapsing star, in which protons and electrons fuse to form neutrons and release neutrinos.

(physics) Relating to neutrons or to neutronics

(physics) The flow of a stream of neutrons

plural of thermal neutron

plural of free neutron

plural of delayed neutron

plural of prompt neutron

(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.