neutrino
neu·tri·no
noun \nü-ˈtrē-(ˌ)nō, nyü-\ plural neu·tri·nos
Definition of NEUTRINO
: an uncharged elementary particle that is believed to have a very small mass, that has any of three forms, and that interacts only rarely with other particles
— neu·tri·no·less \-ləs\ adjective
See Origin of NEUTRINO
Italian, from neutro neutral, neuter, from Latin neutr-, neuter
First Known Use: 1934
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