Definition of "equivalence" in English

noun

1. (uncountable) The condition of being equivalent or essentially equal.

2. (countable, mathematics) An equivalence relation; ≡; ~

3. (uncountable, logic) The relationship between two propositions that are either both true or both false.

4. (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.

5. (mathematics) A Boolean operation that is TRUE when both input variables are TRUE or both input variables are FALSE, but otherwise FALSE; the XNOR function.

6. (geometry) A number in intersection theory. A positive-dimensional variety sometimes behaves formally as if it were a finite number of points; this number is its equivalence.

7. (translation studies) The degree to which a term or text in one language is semantically similar to its translated counterpart.

verb

1. (transitive) To be equivalent or equal to; to counterbalance.