释义 |
protonic
pro·ton P0617400 (prō′tŏn′)n. Abbr. p The stable, positively charged nucleon, having a mass 1,836 times that of an electron and being a baryon composed of two up quarks and one down quark. The proton is a basic component of all atomic nuclei and the nucleus of the protium isotope of hydrogen. [From Greek prōton, neuter of prōtos, first; see per in Indo-European roots.] pro·ton′ic adj.protonic (prəʊˈtɒnɪk) adj (Chemistry) chem (of a solvent, such as water) able to donate hydrogen ions to solute molecules EncyclopediaSeeproton |