I. ˈkwȯrk intransitive verb
Etymology: imitative
archaic : croak
II. ˈkwärk, -wȯr- noun
( -s )
Etymology: coined by Murray Gell-Mann b 1929 American physicist
: any of several elementary particles that are postulated to come in pairs (as of the up and down varieties) of similar mass with one member having a charge of + 2/3 and the other a charge of - 1/3 and that are held to make up hadrons