metagallic acidWiktionary 原文英美构词拆解meta-前缀+gallic acid词干meta-(anatomy and zoology) Behind. [From 19th century] · (botany and zoology) Later or subsequent. [From 19th century]词源说明From meta- + gallic acid.释义名词noun1(organic chemistry) A poorly-characterised polymeric form of gallic acid同族词相关词 1metagallate