# a priori

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## a pri·o·ri

(ä′ prē-ôr′ē, ā′ prī-ôr′ī)
1. Proceeding from a known or assumed cause to a necessarily related effect; deductive.
2.
a. Derived by or designating the process of reasoning without reference to particular facts or experience.
b. Knowable without appeal to particular experience.
3. Made before or without examination; not supported by factual study.

[Medieval Latin ā priōrī : Latin ā, from + Latin priōrī, ablative of prior, former.]

a′ pri·or′i·ty (-ôr′ĭ-tē, -ŏr′-) n.

## a priori

(eɪ praɪˈɔːraɪ; ɑː prɪˈɔːrɪ)
1. (Logic) logic relating to or involving deductive reasoning from a general principle to the expected facts or effects
2. (Logic) 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) statistics See prior probability, mathematical probability
[C18: from Latin, literally: from the previous (that is, from cause to effect)]
apriority n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

## a pri•o•ri

(ˌeɪ praɪˈɔr aɪ, -ˈoʊr aɪ, ˌeɪ priˈɔr i, -ˈoʊr i, ˌɑ priˈɔr i, -ˈoʊr i)
1. from a general law to a particular instance; valid independently of observation. Compare a posteriori (def. 1).
2. existing in the mind independent of experience.
3. conceived beforehand.
[1645–55; < Latin: literally, from the one before. See a-4, prior1]
a•pri•or•i•ty (-ˈɔr ɪ ti -ˈɒr-) n.

## a priori

A Latin phrase meaning from the previous, used to mean deduced or known to be true.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Adj. 1 a priori - involving deductive reasoning from a general principle to a necessary effect; not supported by fact; "an a priori judgment"analytical, analytic - of a proposition that is necessarily true independent of fact or experience; "`all spinsters are unmarried' is an analytic proposition"deductive - involving inferences from general principlesa posteriori - involving reasoning from facts or particulars to general principles or from effects to causes; "a posteriori demonstration" 2 a priori - based on hypothesis or theory rather than experimenttheoretic, theoretical - concerned primarily with theories or hypotheses rather than practical considerations; "theoretical science" Adv. 1 a priori - derived by logic, without observed factsa posteriori - derived from observed facts
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

## a priori

adjective There is no a priori hypothesis to work with.
adverb One assumes, a priori, that a parent would be better at dealing with problems.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
Translations
a priori
a priori
z góry
a priori
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## a priori

[eɪpraɪˈɔːraɪ]
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005