neutrino


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neu·tri·no

 (no͞o-trē′nō, nyo͞o-)
n. pl. neu·tri·nos
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.

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

neutrino

(njuːˈtriːnəʊ)
n, pl -nos
(General Physics) physics a stable leptonic neutral elementary particle with very small or possibly zero rest mass and spin that travels at the speed of light. Three types exist, associated with the electron, the muon, and the tau particle
[C20: from Italian, diminutive of neutrone neutron]

neu•tri•no

(nuˈtri noʊ, nyu-)

n., pl. -nos.
a massless or nearly massless electrically neutral lepton.
[< Italian (1933)]

neu·tri·no

(no͞o-trē′nō)
Any of three electrically neutral subatomic particles that travel at the speed of light. Neutrinos are thought to have a mass that is too close to zero, when they are not moving, to be measured.
Did You Know? Neutrinos were not observed until 1955, roughly a quarter of a century after the physicist Wolfgang Pauli first proposed, on theoretical grounds, that they might exist. Pauli was studying certain radioactive decay processes in which it seemed that energy somehow mysteriously disappeared. He suggested that the energy was carried away by a very small, electrically neutral particle that was not being detected. (He originally wanted to name the particle a neutron but didn't publish the suggestion, and a few years later the particle we now know as the neutron was discovered and named in print. The Italian physicist Enrico Fermi then coined the term neutrino, which means "little neutron" in Italian.) Neutrinos are hard to detect because they interact only very weakly with other forms of matter. Most of the neutrinos that reach the Earth from space pass right through and go out the other side. Even a chunk of iron a few light-years thick would stop only about half of the neutrinos that struck it.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.neutrino - an elementary particle with zero charge and zero mass
lepton - an elementary particle that participates in weak interactions; has a baryon number of 0
Translations

neutrino

nNeutrino nt

neutrino

[njuːˈtriːnəʊ] nneutrino
References in periodicals archive ?
Instead they were captured with a different identity when arriving to the Sudbury Neutrino Observatory.
Occasionally, a neutrino slams into an electron within the liquid and generates a flash of light.
Pocar explained that their experiment involved taking a neutrino photograph of the Sun because of which they confirmed the theories about the sun.
Sterile neutrinos are a hypothetical type of neutrino that is predicted to interact with normal matter only via gravity.
Neutrino Hunters: The Thrilling Chase for a Ghostly particle to Unlock the Secrets of the Universe comes from an astrophysicist and science writer who tells of the neutrino's discovery, providing both science and a biography of scientists involved in research.
Francis Halzen, a physics professor at the University of Wisconsin who is the principal investigator for the project, the IceCube Neutrino Observatory.
The most common type of neutrino forms within the cores of stars like our sun.
The Neutrino solution includes a wireless signal blocking device with new, patent-pending WaveShield(tm) technology.
A large neutrino detector operated by the University of Tokyo's Institute for Cosmic Ray Research was shown off to media organizations on Friday before the completion of its repair work in mid-April following severe damage sustained in an accident in November 2001.
The team expects to complete an observatory measuring about 1 cubic kilometer by 2009-2010 that is about 20,000 times the capacity of the gigantic underground neutrino detector named Super Kamiokande in Hida, Gifu Prefecture.
Our knowledge on [lambda] comes from the [beta]-asymmetry coefficient A, the correlation between neutron spin and the electron momentum, and with less precision from the coefficient a, the correlation between neutrino and electron momenta.
the world's largest uranium enrichment enterprise and manufacturer of advanced process control technology for the nuclear industry, has integrated McObject's eXtremeDB in-memory database system and the QNX Neutrino RTOS within its process control systems and equipment.