| 释义 |
nucleonium, n. Particle Physics. rare.|njuːklɪˈəʊnɪəm|
[f. nucleon n. + -onium 2.]
A particle consisting of a nucleon and the corresponding antinucleon bound to each other. Usu. without article, or attrib.
1956Physical Rev. CIII. 258/1 We consider annihilation of nucleonium, i.e., a nucleon-antinucleon pair. 1974McGraw-Hill Yearbk. Sci. & Technol. 102/1 The simplest kind of nucleonium atom is the protonium atom, which consists of a proton and an antiproton. |