英文字典中文字典51ZiDian.com

The Collaborative International Dictionary of English v.0.48 (gcide)

Equivalence \E*quiv"a*lence\, v. t.
To be equivalent or equal to; to counterbalance. [R.] --Sir
T. Browne.
[1913 Webster]


Equivalence \E*quiv"a*lence\ ([-e]*kw[i^]v"[.a]*lens), n. [Cf.
F. ['e]quivalence, LL. aequivalentia.]
1. The condition of being equivalent or equal; equality of
worth, value, signification, or force; as, an equivalence
of definitions.
[1913 Webster]

2. Equal power or force; equivalent amount.
[1913 Webster]

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.]
[1913 Webster]