equivalence

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e·quiv·a·lence

, equivalency (ē-kwiv'ă-lens, -len-sē),
1. The property of an element or radical of combining with or displacing, in definite and fixed proportion, another element or radical in a compound.
2. The point in a precipitin test at which antibody and antigen are present in optimal proportions.
[L. aequus, equal, + valentia, strength (valence)]

equivalence

[ikwiv′ələns]
a state of being equal in value.

e·quiv·a·lence

, equivalency (ē-kwiv'ă-lĕns, -lĕn-sē)
The property of an element or radical of combining with or displacing, in definite and fixed proportion, another element or radical in a compound.
[L. aequus, equal, + valentia, strength (valence)]

equivalence

(ē-kwĭv′ă-lĕns) [″ + valere, to be worth]
The quality of being equal in power, potency, force, value, or clinical effectiveness.