(Of the metapodium of a gastropod) producing an operculum.
Mid 19th century; earliest use found in Samuel Woodward (1821–1865), naturalist and palaeontologist.
英语词典包含464360条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。