[-----]

Jyutping fan6 zi2 faa3 hap6 mat6
Pinyin fēn zǐ huà hé wù

Definitions (Wiktionary)
  1. noun
    molecular compound

[-----]

Jyutping fan1 zi2 faa3 hap6 mat6
Pinyin fēn zǐ huà hé wù

Definitions (CC-CEDICT)
  1. molecular biology