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单词	protocephalon
释义	protocephalon noun pro·​to·​cephalon ¦prōt(ˌ)ō+ plural protocephala 1 : the part of an insect embryo that consists of the prostomium and the first postoral somite 2 : the primitive arthropod head corresponding to the sensory as distinguished from the feeding portion of the head of higher forms compare gnathothorax Word History Etymology New Latin, from prot- + cephalon
随便看	arbitrary constant arbitrary function arbitrate arbitrated arbitrates arbitrating arbitration arbitration of exchange arbitrational arbitrationist arbitrations arbitrative arbitrator arbitrators arbitratrixes arbitrement arbitrements arbitrer arbitress arbitresses arblast arblasts Arblay, d' arbol chile arbol chili

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。