antineutrino

[ an-tee-noo-tree-noh, -nyoo-, an-tahy- ]

noun

, Physics.

, plural an·ti·neu·tri·nos.

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

/ 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

antineutrino

/ ăn′tē-no̅o̅-trē′nō,ăn′tī- /

1. The antiparticle that corresponds to the neutrino.

Word History and Origins

Origin of antineutrino¹

First recorded in 1930–35; anti- + neutrino

Example Sentences

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

Sitting still, a muon decays into an electron, a neutrino, and an antineutrino in 2.2 microseconds.

From Science Magazine

For years it seemed like building a muon collider might be the only way to answer whether neutrinos behave differently than antineutrinos.

From Scientific American

Some of the surviving electron antineutrinos will slam into a proton in the scintillator, producing an energetic positron that results in a flash of light.

From Science Magazine

Also present in this pool of particles were neutrinos, which are very tiny, weakly interacting particles, and antineutrinos, their antimatter counterparts.

From Scientific American