[ ee-kwuh-pol-uhnt, ek-wuh- ]
See synonyms for equipollent on Thesaurus.com
  1. equal in power, effect, etc.; equivalent.

  2. Logic. (of propositions, propositional forms, etc.) logically equivalent in any of various specified ways.

  1. an equivalent.

Origin of equipollent

1375–1425; late Middle English <Latin aequipollent- (stem of aequipollēns) of equal value, equivalent to aequi-equi- + pollent- (stem of pollēns) able, present participle of pollēre to be strong

Other words from equipollent

  • e·qui·pol·lence, e·qui·pol·len·cy, noun
  • e·qui·pol·lent·ly, adverb

Words Nearby equipollent

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use equipollent in a sentence

  • But, since is and exists are equipollent, and so being and existing, is being is the same as the unimpeachable is existing.

    The Verbalist | Thomas Embly Osmun, (AKA Alfred Ayres)
  • He touched also upon equipollent propositions, though he did not go far into them.

    Aristotle | George Grote
  • The condition and the major term are "equipollent" in their extension.

    The Sarva-Darsana-Samgraha | Madhava Acharya
  • equipollent, e-kwi-pol′ent, adj. having equal power or force: equivalent.

  • Hill's eloquence exceeded his judgment; Stephens' judgment was superior to his oratorical power; in Toombs these were equipollent.

    Robert Toombs | Pleasant A. Stovall

British Dictionary definitions for equipollent


/ (ˌiːkwɪˈpɒlənt) /

  1. equal or equivalent in significance, power, or effect

  2. logic (of two propositions) logically deducible from each other; equivalent

  1. maths logic (of two classes) having the same cardinality

  1. something that is equipollent

Origin of equipollent

C15: from Latin aequipollēns of equal importance, from equi- + pollēre to be able, be strong

Derived forms of equipollent

  • equipollence or equipollency, noun
  • equipollently, adverb

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