Search Dictionary
Definition of nonbaryonic
nonbaryonic
/ˌnɑːn.bæ.riˈɑː.nɪk/
non · bar · y · on · ic
Adjective:nonbaryonic
nonbaryonic Lexical Profile
CEFR
C2
Grade
13
Tier
3
Usage
Rare
nonbaryonic Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• adjective
1
Not composed of baryons; relating to matter in the universe, such as certain types of dark matter, that does not consist of ordinary protons and neutrons.
Example
"Cosmological observations suggest that the vast majority of dark matter in the universe is nonbaryonic in nature."
Antonyms
View all antonyms for nonbaryonic• Rhymes for nonbaryonic
• Nearby Words
Word Origin & Etymology
Formed from the prefix 'non-' and 'baryonic'. The root 'baryon' originates from the Greek 'barys' meaning 'heavy', combined with the suffix '-on' denoting a particle. The term 'nonbaryonic' emerged in late 20th-century astrophysics to classify theoretical forms of dark matter.
Cite this Entry
Wordmom. (2026). Definition of Nonbaryonic. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/nonbaryonic