单词	Protohydra
释义	Protohydra noun Pro·​to·​hydra "+ : a genus of marine coelenterates similar to Hydra but having no tentacles Word History Etymology New Latin, from prot- + Hydra
随便看	proprietary library proprietary stamp proprieties proprietor proprietorial proprietorially proprietors proprietorship proprietorships Reptantia reptantiae reptantias reptations reptatorial reptatory reptd reptile reptilelike reptiler reptiles reptilest Reptilia reptilia reptiliae reptilian

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。