equivalence

[ ih-kwiv-uh-luh ns or for 3, ee-kwuh-vey-luh ns ]

/ ɪˈkwɪv ə ləns or for 3, ˌi kwəˈveɪ ləns /

SEE SYNONYMS FOR equivalence ON THESAURUS.COM

noun Also equivalency (for defs 1, 2).

the state or fact of being equivalent; equality in value, force, significance, etc.

an instance of this; an equivalent.

Chemistry. the quality of having equal valence.

Logic, Mathematics.

Also called material implication. the relation between two propositions such that the second is not false when the first is true.
Also called material equivalence. the relation between two propositions such that they are either both true or both false.
the relation between two propositions such that each logically implies the other.

adjective

(of a logical or mathematical relationship) reflexive, symmetrical, and transitive.

Words nearby equivalence

equity security, equity stock, equity weighting, equity-linked policy, equiv., equivalence, equivalence class, equivalence principle, equivalence relation, equivalency, equivalent

Origin of equivalence

1535–45; < Middle French < Medieval Latin aequivalentia, equivalent to Latin aequivalent- equivalent + -ia -ia; see -ence

OTHER WORDS FROM equivalence

non·e·quiv·a·lence, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for equivalence

He was trying, I think, to demonstrate balance and equivalence.
Memo to Cops: Criticisms Aren’t Attacks|Michael Tomasky|December 28, 2014|DAILY BEAST
The equivalence between comic books and Scripture is telling of how seriously canon is taken by these fans.
DC Comics’ Diversity Crisis: Why the Status Quo Rules|Liz Watson|July 20, 2014|DAILY BEAST
The experiment found that the type of atom made no difference to the outcome, perfectly in line with the equivalence principle.
The Equivalence Principle and Testing Einstein With Spaceships and Atoms|Matthew R. Francis|June 4, 2014|DAILY BEAST
At one time a vague relation is supposed which is only true on a large scale, and is a union rather than an equivalence.
The Mind and the Brain|Alfred Binet

From this equivalence the reader can easily compute the value which the intermediate measures would have according to this theory.
Archology and the Bible|George A. Barton
He satisfies himself as to the equivalence of the servicesthat is all.
Harmonies of Political Economy|Frdric Bastiat
The equivalence of services, then, is a different thing from a just appreciation of their utility.
Harmonies of Political Economy|Frdric Bastiat
From all this arises the notion of the equivalence of two forces.
The Foundations of Science: Science and Hypothesis, The Value of Science, Science and Method|Henri Poincar

British Dictionary definitions for equivalence

equivalence

equivalency

/ (ɪˈkwɪvələns) /

noun

the state of being equivalent or interchangeable

maths logic

the relationship between two statements, each of which implies the other
Also called: biconditional the binary truth-function that takes the value true when both component sentences are true or when both are false, corresponding to English if and only if . Symbol: ≡ or ↔, as in –(p ∧ q) ≡ – p ∨ – q

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

equivalence

noun Also equivalency (for defs 1, 2).

adjective

Words related to equivalence

Words nearby equivalence

Origin of equivalence

OTHER WORDS FROM equivalence

Examples from the Web for equivalence

British Dictionary definitions for equivalence

equivalency

noun