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

However, the problem does not end when a neutrino is detected. — Rupendra Brahambhatt, Interesting Engineering, 9 Aug. 2026

However, McDonough says the best thing would be to build a neutrino detector at the bottom of the ocean. — James Dinneen, Quanta Magazine, 7 Aug. 2026

The energy from these events is carried away by particles of light (photons) spread across the electromagnetic spectrum, but also by neutrinos. — Robert Lea, Space.com, 10 July 2026

The lab also found a third fundamental particle, the tau neutrino, in 2000. — Kori Rumore, Chicago Tribune, 27 June 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