| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024bar•y•on /ˈbæriˌɑn/USA pronunciation n. [countable]- Physicsa heavy sub-atomic particle.
bar•y•on•ic, adj. [before a noun] WordReference Random House Unabridged Dictionary of American English © 2024bar•y•on (bar′ē on′),USA pronunciation n. [Physics.]- Physicsa proton, neutron, or any elementary particle that decays into a set of particles that includes a proton. Cf. quark model.
- Greek barý(s) heavy + (fermi)on
- 1950–55;
Collins Concise English Dictionary © HarperCollins Publishers:: baryon /ˈbærɪˌɒn/ n - any of a class of elementary particles that have a mass greater than or equal to that of the proton, participate in strong interactions, and have a spin of ½. Baryons are either nucleons or hyperons. The baryon number is the number of baryons in a system minus the number of antibaryons
Etymology: 20th Century: bary-, from Greek barus heavy + -on |