[ ih-kwiv-uh-luh nt or for 5, ee-kwuh-vey-luh nt ]
/ ɪˈkwɪv ə lənt or for 5, ˌi kwəˈveɪ lənt /


equal in value, measure, force, effect, significance, etc.: His silence is equivalent to an admission of guilt.
corresponding in position, function, etc.: In some ways their prime minister is equivalent to our president.
Geometry. having the same extent, as a triangle and a square of equal area.
Mathematics. (of two sets) able to be placed in one-to-one correspondence.
Chemistry. having the same capacity to combine or react chemically.


something that is equivalent.

Origin of equivalent

1425–75; late Middle English < Late Latin aequivalent- (stem of aequivalēns), present participle of aequivalēre. See equi-, -valent

Related forms

Can be confused

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

Examples from the Web for equivalently

  • Yes, any additional current borrowing must eventually be repaid—or, equivalently, the interest on it must be paid forever.

    Let's Start Spending|Robert H. Frank|July 20, 2010|DAILY BEAST
  • The evil of the last days had fallen from him, and the reaction was equivalently violent.

    A Mere Accident|George Moore

British Dictionary definitions for equivalently


/ (ɪˈkwɪvələnt) /


equal or interchangeable in value, quantity, significance, etc
having the same or a similar effect or meaning
  1. having a particular property in common; equal
  2. (of two equations or inequalities) having the same set of solutions
  3. (of two sets) having the same cardinal number
maths logic (of two propositions) having an equivalence between them


something that is equivalent

Derived Forms

equivalently, adverb

Word Origin for equivalent

C15: from Late Latin aequivalēns, from aequivalēre to be equally significant, from Latin aequi- equi- + valēre to be worth
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

Medicine definitions for equivalently


[ ĭ-kwĭvə-lənt ]


Equal, as in value, force, or meaning.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for equivalently


[ ĭ-kwĭvə-lənt ]

Equal, as in value, meaning, or force.
  1. Of or relating to a relation between two elements that is reflexive, symmetric, and transitive.
  2. Having a one-to-one correspondence, as between parts. Two triangles having the same area are equivalent, as are two congruent geometric figures.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.