| 释义 |
pro·ton
\ˈprōˌtän\ noun
(-s)
Etymology: Greek prōton, neuter of prōtos first — more at prot-
1. : anlage
2. : an elementary particle that is identical with the nucleus of the hydrogen atom, that along with neutrons is a constituent of all other atomic nuclei, that carries a positive charge numerically equal to the charge of an electron, and that has a mass of 1.672 × 10-24 gram
• pro·ton·ic \prōˈtänik\ adjective |