Definition from Wiktionary, the free dictionary
Jump to: navigation, search



From French ratiocination, from Latin ratiōcinātiō (argumentation, reasoning, ratiocination; a syllogism), from ratiōcinātus (reckoned), perfect passive participle of ratiōcinor (to compute, reckon; to argue, infer), from ratiō (reason, explanation) (from reor (to calculate, reckon), possibly from Proto-Italic *rēōr, from Proto-Indo-European *h₂reh₁- (to put in order)) +‎ -cinor, modelled after vāticinor (to foretell, prophesy).



ratiocination (usually uncountable, plural ratiocinations)

  1. Reasoning, conscious deliberate inference; the activity or process of reasoning.
    • 1663, Samuel Butler, Hudibras. The First Part. Written in the Time of the Late Wars, London: Printed by J. G. for Richard Marriot [...], OCLC 4023163; republished as Hudibras. In Three Parts. Written in the Time of the Late Wars. Corrected and Amended: with Additions. To which is Added Annotations, with an Exact Index to the Whole. Adorn’d with a New Set of Cuts, from the Designs of Mr. [William] Hogarth, Dublin: Printed by S. Powell, for R. Gunne, G. Risk, G. Ewing, and W. Smith, 1732, OCLC 938431277, canto I, lines 77–80, page 20:
      He'd run in Debt by Diſputation, / And pay with Ratiocination. / All this by Syllogiſm, true / In Mood and Figure, he wou'd do.
    • 1916 June 8, “Suffrage at Chicago”, in The New York Times[1]:
      It is hard to follow the kinks of woman suffrage ratiocination.
  2. Thought or reasoning that is exact, valid and rational.
  3. A proposition arrived at by such thought.


Related terms[edit]


See also[edit]


Further reading[edit]