neutrino

noun

neu·​tri·​no nü-ˈtrē-(ˌ)nō 

nyü-

plural neutrinos

: an uncharged elementary particle that is believed to have a very small mass, that has any of three forms, and that interacts only rarely with other particles

neutrinoless

nü-ˈtrē-(ˌ)nō-ləs 

nyü-

adjective

Examples of neutrino in a Sentence

Recent Examples on the Web

The extremely short, picometer-scale wavelength of nuclear-decay neutrinos makes the possible collective emission cone extraordinarily narrow. — Rupendra Brahambhatt, Interesting Engineering, 6 Sep. 2026

Detectors are becoming so large and so sensitive that they will soon be swamped with other ghostly particles called neutrinos that are generated in the sun and in Earth’s atmosphere. — Joseph Howlett, Scientific American, 1 Sep. 2026

Run by a multi-university collaborative and funded by NASA, the array of radio antennas suspended from a stratospheric balloon was devised to study neutrinos – fast-traveling elementary particles with no electrical charge. — Diya Chacko, Oc Register, 26 Aug. 2026

Blazars, like the one central to this study, designated PKS 2233-148, have long been proposed to be the cosmic particle accelerators that blast out neutrinos. — Robert Lea, Space.com, 19 Aug. 2026

Word History

Etymology

Italian, from neutro neutral, neuter, from Latin neutr-, neuter

First Known Use

1934, in the meaning defined above

Rhymes for neutrino

• amino
• carlino
• casino
• imino
• ladino
• latino
• merino
• argentino
• campesino
• cappuccino
• diamino
• filipino

Kids Definition

neutrino

noun

neu·​tri·​no n(y)ü-ˈtrē-nō 

plural neutrinos

: an uncharged elementary particle believed to have little or no mass

Medical Definition

neutrino

noun

neu·​tri·​no n(y)ü-ˈtrē-(ˌ)nō 

plural neutrinos

: an uncharged elementary particle that is believed to be massless or to have a very small mass, that has any of three forms, and that interacts only rarely with other particles