Main Entry: bary·on

Pronunciation: \ˈber-ē-ˌän, ˈba-rē-\

Function: noun

Etymology: International Scientific Vocabulary bary- (from Greek barys heavy) + ²-on — more at grieve

Date: 1953

: any of a group of subatomic particles (as nucleons) that are subject to the strong force and are composed of three quarks

— bary·on·ic \ˌber-ē-ˈä-nik, ˌba-rē-\ adjective