- the condition of being equivalent; equality of quantity, value, force, meaning, etc.
- Chem. equality of combining capacity; the principle that different weights of different substances are equivalent in chemical reactions
Origin of equivalenceFrench équivalence ; from Medieval Latin aequivalentia
- The state or condition of being equivalent; equality.
- Mathematics An equivalence relation.
- Logic The relationship that holds for two propositions that are either both true or both false, so that the affirmation of one and the denial of the other results in contradiction.
- (uncountable) The condition of being equivalent or essentially equal.
- (countable, mathematics) An equivalence relation; ≡; ~
- (uncountable, logic) The relationship between two propositions that are either both true or both false.
- (chemistry) 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.
(third-person singular simple present equivalences, present participle equivalencing, simple past and past participle equivalenced)
OriginSee also: équivalence
From French équivalence