• synonyms


[rash-ee-os-uh-ney-shuh n, -oh-suh-, rat-ee-]
See more synonyms for ratiocination on Thesaurus.com
  1. the process of logical reasoning.
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Origin of ratiocination

1520–30; < Latin ratiōcinātiōn- (stem of ratiōcinātiō), equivalent to ratiōcināt(us) (see ratiocinate) + -iōn- -ion
Related formsra·ti·oc·i·na·tive, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for ratiocination

argumentation, coherence, inference, rationale, relationship, deduction, philosophy, syllogism, connection, sanity, reason, rationality, thesis, sense, dialectic, induction, linkage

Examples from the Web for ratiocination

Historical Examples of ratiocination

  • Yes, Uncle Reub'; ratiocination is a good word in its place.

    Moriah's Mourning and Other Half-Hour Sketches

    Ruth McEnery Stuart

  • Its two constituent parts are ratiocination and description.

  • So, when the steaks were done, we besought him to lay bare his system of ratiocination.

  • Words seem to be the vehicles rather of ratiocination than of emotion.

  • To be in love is in a measure to part company with the power of ratiocination.

    Mlle. Fouchette

    Charles Theodore Murray

Word Origin and History for ratiocination


"process of reasoning," 1520s, from Latin ratiocinationem (nominative ratiocinatio) "a reasoning, calm reasoning," from past participle stem of ratiocinare "to calculate, deliberate," from ratio (see ratio) + -cinari, which probably is related to conari "to try" (see conation).

Most writers make ratiocination synonymous with reasoning. J.S. Mill and others hold that the word is usually limited to necessary reasoning. [Century Dictionary]
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Online Etymology Dictionary, © 2010 Douglas Harper