hyperon (hĪˈpərŏnˌ) [key], class of elementary particles heavier than nucleons (proton and neutron). The nucleons and the hyperons together make up the baryon family of particles.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.
About Infoplease, Part of Family Education Network
© 2000–2014 Pearson Education, publishing as Infoplease