A medieval chemical philosophy having as its asserted aims the transmutation of base metals into gold, the discovery of the panacea, and the preparation of the elixir of longevity. 鍊金術,煉丹術中世紀的一種化學哲學。其聲稱的目標是將一些基本金屬轉變為金子,發現萬靈藥及製備長生不老葯
His friends asserted that he was innocent. 他的朋友們斷言他是清白的。
She asserted her innocence/that she was innocent. 她堅稱自己很清白[她是無辜的]。