noun
Meaning 1
A light scalar particle that arises from the spontaneous breaking of a global continuous symmetry, but with an additional small explicit breaking of the symmetry that gives it a small but nonzero mass.
Definition source: English Wiktionary via Wiktextract
Usage: particle
Topics: natural-sciences, physical-sciences, physics
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: pNGB
Antonyms: none provided