質子

proton (positively charged nuclear particle) / a prince sent to be held as a hostage in a neighbouring state in ancient China

character / nature / quality / plain / to pawn / pledge / hostage / to question / Taiwan pr. [zhi2]

son / child / seed / egg / small thing / 1st earthly branch: 11 p.m.-1 a.m., midnight, 11th solar month (7th December to 5th January), year of the Rat / Viscount, fourth of five orders of nobility 五等爵位[wu3 deng3 jue2 wei4] / ancient Chinese compass point: 0° (north) / subsidiary / subordinate / sub-

(noun suffix)

proton number in nucleus / atomic number

proton bombardment