Langimage
English

baryon

|bar-i-on|

C2

🇺🇸

/ˈbær.i.ɑn/

🇬🇧

/ˈbær.i.ɒn/

heavy (three-quark) particle

Etymology
Etymology Information

'baryon' originates from Greek, specifically the word 'βαρύς (barys)', where 'barys' meant 'heavy', combined with the particle-forming suffix '-on' used in physics.

Historical Evolution

'baryon' was coined in mid-20th-century particle physics (modeled on names like 'proton' and 'meson') and entered English scientific usage as 'baryon'.

Meaning Changes

Initially related to the Greek root meaning 'heavy', it evolved into a technical term for a specific class of subatomic particles (three-quark particles).

Meanings by Part of Speech

Noun 1

a class of composite subatomic particles made of three quarks and subject to the strong interaction; examples include the proton and neutron. Baryons carry baryon number +1.

A proton is a baryon composed of three quarks.

Synonyms

hadron (specifically a three-quark hadron)

Last updated: 2025/10/16 16:56