四氟化铀 Traditional form: 四氟化鈾 Pinyin (reading): sìfúhuàyóu Definitions: uranium tetrafluoride (UF4) Characters: 四 - four 氟 - fluorine 化 - to change, to convert, to reform; -ize 铀 - uranium Traditional characters: 四 - four 氟 - fluorine 化 - to change, to convert, to reform; -ize 鈾 - uranium