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a priori

[ey prahy-awr-ahy, -ohr-ahy, ey pree-awr-ee, -ohr-ee, ah pree-awr-ee, -ohr-ee]
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adjective
  1. from a general law to a particular instance; valid independently of observation.Compare a posteriori(def 1).
  2. existing in the mind prior to and independent of experience, as a faculty or character trait.Compare a posteriori(def 2).
  3. not based on prior study or examination; nonanalytic: an a priori judgment.
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Origin of a priori

1645–55; < Latin: literally, from the one before. See a-4, prior1
Related formsa·pri·or·i·ty [ey-prahy-awr-i-tee, -or-] /ˌeɪ praɪˈɔr ɪ ti, -ˈɒr-/, noun
Can be confusedad hoc a posteriori a priori ex post facto prima facie
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for apriority

Historical Examples

  • In its apriority it can never be insane; insanity is a symptom of the morbid a posteriori.

    The Mystery of Space

    Robert T. Browne

  • The apriority of all mathematical knowledge is open to serious questioning.

    The Mystery of Space

    Robert T. Browne

  • This should settle, once for all, the question of apriority.

    The Mystery of Space

    Robert T. Browne

  • It is indeed possible that Kant himself regarded this objective necessity of time as contributing to the proof of its apriority.

  • How completely unlike are the things which are here classed together under the conception of apriority!

    The Basis of Morality

    Arthur Schopenhauer


British Dictionary definitions for apriority

a priori

adjective
  1. logic relating to or involving deductive reasoning from a general principle to the expected facts or effects
  2. logic known to be true independently of or in advance of experience of the subject matter; requiring no evidence for its validation or support
  3. statistics See prior probability, mathematical probability
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Derived Formsapriority (ˌeɪpraɪˈɒrɪtɪ), noun

Word Origin

C18: from Latin, literally: from the previous (that is, from cause to effect)
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

Word Origin and History for apriority

a priori

1710, "from cause to effect" (a logical term, in reference to reasoning), Latin, literally "from what comes first," from priori, ablative of prior "first" (see prior (adj.)). Used loosely for "in accordance with previous knowledge" (1834).

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Online Etymology Dictionary, © 2010 Douglas Harper