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 (ăn′tē-no͞o-trē′nō, -nyo͞o-, ăn′tī-)
n. pl. an·ti·neu·tri·nos
The antiparticle of a neutrino.


n, pl -nos
(Atomic Physics) the antiparticle of a neutrino; a particle having oppositely directed spin to a neutrino, that is, spin in the direction of its momentum


(ˌæn ti nuˈtri noʊ, -nyu-, ˌæn taɪ-)

n., pl. -nos.
the antiparticle of a neutrino, distinguished from the neutrino by its equal but opposite spin.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antineutrino - the antiparticle of a neutrino
antilepton - the antiparticle of a lepton
References in periodicals archive ?
As they travel, the neutrinos and antineutrinos change their "flavor" from muon to electron.
e] detection schemes, the final result for scientists turned out to be negative for the reason that antineutrinos [v.
These jets might be made of neutrons that undergo beta decay to form protons, electrons and antineutrinos.
Analyzing more than 300,000 electron antineutrinos (the antimatter counterpart of the electron neutrino) collected from the Daya Bay nuclear reactors during 217 days of operation, researchers found 6 percent fewer of the particles than predicted by the standard particle physics model.
I cannot say with the same empirical certainty that for every weak graduate from institutional africology there is a correspondingly strong one, as physicists can do regarding matter and antimatter, electrons and positrons, protons and antiprotons, quarks and anti-quarks, neutrinos and antineutrinos, and so on.
If neutrinos and their antimatter equivalent, antineutrinos, oscillate differently, this could provide the explanation.
A unique feature of SN1987A was the detection of a neutrino burst when two neutrino observatories, Kamiokande II and IMB, detected 11 and 8 antineutrinos respectively and this event arguably led to the beginning of neutrino astronomy.
Al final de los tres primeros minutos, el universo contenia principalmente luz, neutrinos y antineutrinos.
Because photons take a long time to diffuse out of dense matter, neutron stars mostly cool by releasing neutrinos and antineutrinos that escape almost immediately.
Neutrinos had been detected but only in the form of antineutrinos produced by nuclear fission reactors (see 1956).
One aspect of study is the behaviour of particles called neutrinos and their antimatter counterparts, antineutrinos.