乙酸一丙二酸途径?    acetate-malonate pathway

乙酸- 甲瓦龙酸途径?    acetate-mevalonate pathway

色素?    acridine alkaloid

活性成分?    active constituent

混淆品?    adulterant

掺伪?    adulteration

苷元?    aglycone

醇苷?    alcoholic glycoside

醛苷?    aldehyde glycoside

没食子鞣质?    alkaloid

类同品?    allied drug

支链淀粉?    amylopectin

直链淀粉?    amylose

花色素?    anthocyanidin

花色苷?    anthocyanin

蒽酚?    anthranol

蒽醌?    anthraquinone

蒽醌苷?    anthraquinone glycoside

蒽酮?    anthrone

微量元素?    aporphine alkaloid

橙酮?    aurone