metagreywackeWiktionary 原文英美构词拆解metameta-前缀greywackegreywacke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- + greywacke.释义名词noun1A greywacke that has undergone metamorphism to some degree.