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univalent a. 一价的 一价的 univalent adj 1: used of a chromosome that is not paired or united with its homologous chromosome during synapsis; "a univalent chromosome" [ant: {bivalent}, {double}, {multivalent}] 2: having a valence of 1 [synonym: {monovalent}, {univalent}] [ant: {multivalent}, {polyvalent}] Univalent \U*niv"a*lent\, a. [Uni- L. valens, -entis, p. pr.
See {Valence}.] (Chem.) Having a valence of one; capable of combining with, or of being substituted for, one atom of hydrogen; monovalent; -- said of certain atoms and radicals. [1913 Webster]
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