Neutrino meaning

no͝o-trēnō, nyo͝o-
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Any of three electrically neutral leptons (the electron neutrino, muon neutrino and tau neutrino—one in each of the three generations of elementary fermions) that have small or very small masses.
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(particle physics) Any of three stable leptons having a mass approaching zero and no charge: a neutrino has almost no interaction with matter.
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Any of three electrically neutral subatomic particles with extremely low mass. These include the electron-neutrino, the muon-neutrino, and the tau-neutrino. &diamf3; The study of neutrinos that come to the earth as cosmic rays suggests that neutrinos can transform into each other in a process called neutrino oscillation . For this phenomenon to be theoretically possible, the three neutrinos must have distinct masses; for this reason, many scientists believe that they have mass.
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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.
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Origin of neutrino

  • Italian from neutrino little neutral one neutro neuter, neutral (from Latin neuter neutr- neuter neuter) -ino dimutive suff. (from Latin -īnus adj. suff. –ine1) Coined by Enrico Fermi on the model of Italian neutrone neutron taken as the augmentative of Italian neutro

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Italian neutrino (coined by Enrico Fermi), diminutive of neutro (“neutral").

    From Wiktionary