meson
me·son
noun \ˈmez-ˌän, ˈmēz-, ˈmēs-, ˈmes-\Definition of MESON
: any of a group of unstable elementary particles that are subject to nuclear forces and have masses much greater than that of the electron
—me·son·ic \me-ˈzän-ik, mē-, -ˈsän-\ adjective








