(Particle Physics) noun. neutrino. Originated by
Pauli, using the term 'neutron.' After discovery of 'heavy neutron' by Chadwick (1932), Enrico
Fermi dubbed the term by using 'Neutrino' to distinguish from
Chadwick's 'heavy neutron.'
There are three types of neutrinos, which are
electron,
tau, and
muon.