1) Baryon 2) Heavy particle 
quasi-stable member of a class of subatomic particles known as baryons that are composed of three quarks. More massive than their more-familiar ...
A baryon whose strangeness is nonzero; in other words, a baryon that contains at least one strange quark. The lightest hyperon is the A particle, with strangeness -1 and quark composition uds (up-down-strange). The name 'hyperon' comes from the Greek iper meaning 'above' or 'beyond' and wa...
very short-lived elementary particle, with or without electric charge, of spin 1/2 or 3/2, of rest mass greater than that of the neutron
[n] - any baryon that is not a nucleon
any baryon with strangeness other than zero, esp. one with a relatively long lifetime.