单词	tetracovalent
释义	tetracovalent adjective tet·​ra·​covalent : sharing four covalent bonds with other atoms or characterized by such sharing tetracovalent nitrogen Word History Etymology tetra- + covalent
随便看	Nodosaurus nodose nodosities nodosity nods nods off nodular nodular iron nodulate nodulated nodulation nodulations nodule noduled nodules nodulize nodulose nodulous nodus NOE noegenesis noegenetic Nouakchott nouakchotts nougat

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