equivalence

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Antonyms

E*quiv"a*lence, n. Etym: [Cf. F. équivalence, LL. aequivalentia.] 1. The condition of being equivalent or equal; equality of worth, value, signification, or force; as, an equivalence of definitions. 2. Equal power or force; equivalent amount. 3. (Chem.) (a) The quantity of the combining power of an atom, expressed in hydrogen units; the number of hydrogen atoms can combine with, or be exchanged for; valency. See Valence. (b) The degree of combining power as determined by relative weight. See Equivalent, n., 2. [R.] E*quiv"a*lence, v. t. Defn: To be equivalent or equal to; to counterbalance. [R.] Sir T. Browne.