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a priori

[ey prahy-awr-ahy, -ohr-ahy, ey pree-awr-ee, -ohr-ee, ah pree-awr-ee, -ohr-ee] /ˌeɪ praɪˈɔr aɪ, -ˈoʊr aɪ, ˌeɪ priˈɔr i, -ˈoʊr i, ˌɑ priˈɔr i, -ˈoʊr i/
from a general law to a particular instance; valid independently of observation.
Compare a posteriori (def 1).
existing in the mind prior to and independent of experience, as a faculty or character trait.
Compare a posteriori (def 2).
not based on prior study or examination; nonanalytic:
an a priori judgment.
Origin of a priori
1645-55; < Latin: literally, from the one before. See a-4, prior1
Related forms
[ey-prahy-awr-i-tee, -or-] /ˌeɪ praɪˈɔr ɪ ti, -ˈɒr-/ (Show IPA),
Can be confused Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for apriority
Historical Examples
  • It is indeed possible that Kant himself regarded this objective necessity of time as contributing to the proof of its apriority.

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

    The Mystery of Space Robert T. Browne
  • 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

/eɪ praɪˈɔːraɪ; ɑː prɪˈɔːrɪ/
(logic) relating to or involving deductive reasoning from a general principle to the expected facts or effects
(logic) known to be true independently of or in advance of experience of the subject matter; requiring no evidence for its validation or support
Compare a posteriori, analytic (sense 4)
Derived Forms
apriority (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
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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).

Online Etymology Dictionary, © 2010 Douglas Harper
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