氧原子 Traditional form: 氧原子 Pinyin (reading): yǎngyuánzǐ Definitions: oxygen atom Characters: 氧 - oxygen 原 - source, origin, beginning 子 - son, child; seed, egg; fruit; small thing Traditional characters: 氧 - oxygen 原 - source, origin, beginning 子 - son, child; seed, egg; fruit; small thing