ˈme]ˌzän, ˈmē], ˈmā], ]_z ə n, ]ˌsän, ]_s ə n noun
( -s )
Etymology: International Scientific Vocabulary mes- + -on
: any of a group of short-lived subatomic particles that have masses typically between those of the electron and the proton and that have zero or an integral number of quantum units of spin — called also mesotron ; see mu-meson , pi-meson
• me·son·ic (ˈ)me|]zänik, (ˈ)mē|], (ˈ)mā|], mə̇ˈ], ]sä-\ adjective