Preon

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A hypothetical point-like particle, supposed to be a subcomponent of quarks and leptons and possibly bosons too.

Etymology

From pre- + -on, coined in 1974 by Jogesh Pati and Abdus Salam.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.