[ih-lek-tron-noo-tree-noh, -nyoo-]

noun, plural e·lec·tron-neu·tri·nos. Physics.

a type of neutrino that obeys a conservation law together with the electron, with the total number of electrons and electron-neutrinos minus the total number of their antiparticles remaining constant.

Compare lepton2.
Also called electronic neutrino, e-neutrino.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019