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 (ăn′tē-no͞o-trē′nō, -nyo͞o-, ăn′tī-)
n. pl. an·ti·neu·tri·nos
The antiparticle of a neutrino.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(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.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.antineutrino - the antiparticle of a neutrino
antilepton - the antiparticle of a lepton
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
This theory tells us that a nucleus or an atom in an excited state is bound to decay to a lower energy state while at the same time emitting a "particle" or a photon, as in the case of the reaction "neutron [right arrow] proton + antineutrino." The theory does not predict when such decay will happen, but it may predict the probability that it will happen during a given time interval.
However, a free neutron decays into a proton, an electron and antineutrino within 15 minutes while the life-spans of the proton and electron top everything that is measurable, exceeding [10.sup.29] years [13].
Andreopoulos et al., "T2K, Combined Analysis of Neutrino and Antineutrino Oscillations at T2K," Physical Review Letters, vol.
For example, the difference in neutrino and antineutrino oscillation due to the violation of charge-parity symmetry, which is thought to be related to the origins of the matter-dominated era in the universe's history, or research into problems related to neutrino mass (the hierarchy problem).
By recording the antineutrino output of nuclear reactors, detectors can discern the relative amounts of plutonium and uranium, the raw materials for making nuclear weapons.
(58) A neutron will decay into a proton, an electron and an antineutrino over a relatively short time frame.
The inside of a cylindrical antineutrino detector before being filled with clear liquid scintillator, which reveals antineutrino interactions by the very faint flashes of light they emit.
(Here Z is the number of protons and A, the atomic number, is the combined total of protons and neutrons.) If the new isotope is unstable, one of its neutrons may decay into a proton by emitting an electron and an antineutrino, converting the atom into the next element in the periodic table.
A very common subatomic particle in our universe is the left-handed electron antineutrino. As far as we can tell, this entity is just spin, there does not appear to be anything actually doing the spinning.
Sin embargo, esa diferencia indica una antiparticula (una particula con un estado de energia negativo): el antineutrino.
For example, a footloose and fancy-free neutron decays into a proton, an electron, and an antineutrino with a half-life of some 22 minutes.