Neutron vs. Neutrino

Neutronnoun

(particle) 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.

Neutronnoun

an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus

Neutron

The neutron is a subatomic particle, symbol n or n0, which has a neutral (not positive or negative) charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms.

Neutrinonoun

An elementary particle that is classified as a lepton, and has an extremely small but nonzero mass and no electric charge. It interacts with the surroundings only via the weak force or gravitation, making it very difficult to detect.

Neutrinonoun

an elementary particle with zero charge and zero mass

Neutrino

A neutrino ( or ) (denoted by the Greek letter ν) is a fermion (an elementary particle with spin of 1/2) that interacts only via the weak interaction and gravity. The neutrino is so named because it is electrically neutral and because its rest mass is so small (-ino) that it was long thought to be zero.