Early 19th century; earliest use found in James Parkinson (1755–1824), surgeon and palaeontologist. After post-classical Latin radiciformis; compare French radiciforme.
英语词典包含243303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。