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antineutrino

American  
[an-tee-noo-tree-noh, -nyoo-, an-tahy-] / ˌæn ti nuˈtri noʊ, -nju-, ˌæn taɪ- /

noun

Physics.
antineutrinos plural
  1. the antiparticle of a neutrino, distinguished from the neutrino by having clockwise rather than counterclockwise spin when observing in the direction of motion.


antineutrino British  
/ ˌæntɪnjuːˈtriːnəʊ /

noun

  1. 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 & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

antineutrino Scientific  
/ ăn′tē-no̅o̅-trēnō,ăn′tī- /
  1. The antiparticle that corresponds to the neutrino.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of antineutrino

First recorded in 1930–35; anti- + neutrino

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The NOvA experiment started taking data in 2014 and will continue running through early 2027, during which time the collaboration hopes to double their antineutrino dataset.

From Science Daily Jun. 19, 2024

Electron scattering experiments measure where an electron touches a quark’s charge, and neutrino experiments measure where an antineutrino changes a quark’s flavor.

From Scientific American Mar. 16, 2023

Created in a high energy particle collision, a W quickly decays into either an electron or its heavier cousin, a particle called a muon, and an antineutrino.

From Science Magazine Apr. 6, 2022

Thus, when an antineutrino hits, Super-K will see not one flash but two, a few microseconds apart.

From Nature Feb. 26, 2019

The electron’s antineutrino ν¯ e , being antimatter, has an electron family number of –1 .

From Textbooks Aug. 12, 2015

If neutrinos and antineutrinos oscillate differently, that difference could point to why matter ultimately prevailed.

From Science Daily Mar. 3, 2026

By measuring the neutrinosand their antimatter partners, antineutrinos, in both locations, physicists can study how these particles change their type as they travel, a phenomenon known as neutrino oscillation.

From Science Daily Jun. 19, 2024

As the electron antineutrinos travel from the reactors to JUNO, many will oscillate into muon or tau antineutrinos that the detector can’t see.

From Science Magazine Aug. 22, 2023

With this new result, my collaborators and I worked backward to find the number of neutrinos and antineutrinos necessary to produce the helium abundance found in the data.

From Scientific American Jul. 28, 2023

The neutrinos and antineutrinos, however, would not have annihilated with each other, because these particles interact with themselves and with other particles only very weakly.

From "A Brief History of Time: And Other Essays" by Stephen Hawking

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