n. | 1. | The condition of being equivalent or equal; equality of worth, value, signification, or force; |
2. | Equal power or force; equivalent amount. | |
3. | (Chem.) 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. | |
v. t. | 1. | To be equivalent or equal to; to counterbalance. |
Noun | 1. | equivalence - a state of being essentially equal or equivalent; equally balanced; "on a par with the best" |
2. | equivalence - essential equality and interchangeability Antonyms: nonequivalence - not interchangeable | |
3. | equivalence - qualities that are comparable; "no comparison between the two books"; "beyond compare" |