单词	pentavalent
释义	pentavalent adjective pen·​ta·​va·​lent ˌpen-tə-ˈvā-lənt  : having a valence of five Example Sentences Recent Examples on the Web The pentavalent vaccine -- which protects against five diseases (diphtheria, tetanus, pertussis, hepatitis B and Haemophilus influenzae type B) -- is a great example. Bill Gates, CNN, 13 Oct. 2021 Word History First Known Use 1866, in the meaning defined above Medical Definition pentavalent adjective pen·​ta·​va·​lent ˌpent-ə-ˈvā-lənt  : having a valence of five
随便看	orthodoxy orthodromics orthodromy orthoepic orthoepically orthoepies orthoepist orthoepists orthoepy orthoferrosilite orthoformic acid orthoformic ester orthogeneses orthogenesis orthogenetic orthogenetically orthogenic orthogenics orthogeosyncline orthogneiss orthogonal orthogonal functions orthogonal projection orthogonal system orthogonal trajectory

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