原子论 Traditional form: 原子論 Pinyin (reading): yuánzǐlùn Definitions: atomic theory Characters: 原 - source, origin, beginning 子 - son, child; seed, egg; fruit; small thing 论 - debate; discussion Traditional characters: 原 - source, origin, beginning 子 - son, child; seed, egg; fruit; small thing 論 - debate; discussion