单词	opticoel
释义	opticoel noun op·​ti·​coel ˈäptəˌsēl plural -s : the cavity of the optic vesicle Word History Etymology blend of optic and -coel (from Greek koilos hollow)
随便看	symbolophobia symbols symbranch Symbranchia symbranchiate Symbranchidae Symbranchii symbranchoid Symington symmetallic symmetallism symmetallisms symmetrians symmetric symmetric group symmetric matrix symmetrical symmetrical diphenyl-urea symmetrical lens symmetrically symmetricalness symmetricalnesses symmetriccer symmetriccest symmetricer

英语词典包含469781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。