Noun[edit] malapropism â(plural malapropisms) (uncountable) The blundering use of an absurdly inappropriate word or expression in place of a similar-sounding one.
Definition of positron. : a positively charged particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of the electron âcalled also antielectron.
noun (plural neutrinos). A neutral subatomic particle with a mass close to zero and half-integral spin, which rarely reacts with normal matter. Three kinds of neutrinos are known, associated with the electron, muon, and tau particle.Example sentences. 1  The leptons consist of the charged electron, muon and tau, together with three electronically neutral particles-the electron neutrino, muon neutrinos and tau neutrinos.2  The proton and the neutron are baryons; the electron, the muon, and the neutrino are leptons; whilst the pions are mesons.xample sentences. 1  The leptons consist of the charged electron, muon and tau, together with three electronically neutral particles-the electron neutrino, muon neutrinos and tau neutrinos. 2  The proton and the neutron are baryons; the electron, the muon, and the neutrino are leptons; whilst the pions are mesons.