Definition of "a posteriori" [a• pos•te•ri•o•ri]

  • Derived by or designating the process of reasoning from facts or particulars to general principles or from effects to causes; inductive; empirical. (adjective)
  • Justified by appeal to experience. (adjective)
  • Knowable from experience. (adjective)
  • Relating to or involving inductive reasoning from particular facts or effects to a general principle (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • Derived from or requiring evidence for its validation or support; empirical; open to revision (adjective)

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Use "a posteriori" in a sentence
  • "I say special training, meaning, that which takes up the subject scientifically, with a priori, and a posteriori evidence: -- of things not seen -- with homiletical and hermaneutical arrangement, and discussion in sermonizing."
  • "But the difficulty is with regard to this preliminary admission, which if challenged -- as it is in fact challenged by Agnostics -- requires to be justified by recurring to the a posteriori argument, i.e. to the inference by way of causality from contingency to self-existence and thence by way of deduction to infinity."
  • "Well, Aries Tottle flourished supreme until the advent of one Hog, surnamed the 'Ettrick Shepherd', who preached an entirely different system, which he called the a posteriori or inductive."