单词	Pentacrinus
释义	Pentacrinus noun Pen·​tac·​ri·​nus -nəs : a genus (the type of the family Pentacrinidae) comprising large stalked Jurassic crinoids having a small bowl-shaped calyx, strong numerously branched and pinnulate arms, and a pentangular stalk Word History Etymology New Latin, from penta- (from Greek) + -crinus
随便看	nitrosylsulfuric acid nitrotoluene nitrous nitrous acid nitrous anhydride nitrous ether nitrous oxide nitrous vitriol nitrouser nitrousest nitrousser nitroussest nitroxyl nits nitta tree Nittany Nittany turkey nitter nittier nittiest nitty nitty-gritty nitweed nitweedes nitweeds

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。