ScienceAugust 4, 2026
antineutrinos
an-tee-noo-TREE-nohz
Definition
Elementary particles that are the antimatter counterparts to neutrinos, often emitted during radioactive decay processes in nuclear reactors.
Etymology
Derived from the Greek prefix 'anti-' meaning 'against' or 'opposite,' combined with 'neutrino,' which is the diminutive form of the Italian 'neutrone' meaning 'little neutral one'.
In the news
The term appears in the 'Trending' section of the article to describe how researchers measured these particles from spent nuclear fuel to confirm emissions continue even after a reactor has been shut down.
Quantum fluid reveals hidden states that can be switched with a magnetic field
Read the full article ↗phys.org