Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “a priori”

a priori

adjective [before noun] uk   /ˌeɪ.praɪˈɔː.raɪ/ /-priːˈɔː.ri/ us    /-ˈɔːr.aɪ/ formal
relating to an argument that suggests the probable effects of a known cause, or using general principles to suggest likely effects: "It's freezing outside; you must be cold" is an example of a priori reasoning.
a priori
adverb uk   us  
(Definition of a priori from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of a priori?
Browse related topics

You are looking at an entry to do with Logic and reason, but you might be interested in these topics from the Thinking, dreaming and ideas topic area:

Add Cambridge dictionaries to your browser to your website

Translations of “a priori”

Word of the Day

debut

the occasion when someone performs or presents something to the public for the first time

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More