a posteriori

play
adjective a pos·te·ri·o·ri \ˌä-(ˌ)pō-ˌstir-ē-ˈȯr-ē, -ˌster-; ˌā-(ˌ)pä-ˌstir-ē-ˈȯr-ˌī, -(ˌ)pō-, -ˈȯr-ē\

Definition of a posteriori

  1. 1 :  inductive

  2. 2 :  relating to or derived by reasoning from observed facts — compare a priori

a posteriori

adverb

Did You Know?

A posteriori, Latin for "from the latter", is a term from logic, which usually refers to reasoning that works backward from an effect to its causes. This kind of reasoning can sometimes lead to false conclusions. The fact that sunrise follows the crowing of a rooster, for example, doesn't necessarily mean that the rooster's crowing caused the sun to rise.

Origin and Etymology of a posteriori

Latin, literally, from the latter


First Known Use: 1588


A POSTERIORI Defined for English Language Learners

a posteriori

play
adjective a pos·te·ri·o·ri \ˌä-(ˌ)pō-ˌstir-ē-ˈȯr-ē, -ˌster-; ˌā-(ˌ)pä-ˌstir-ē-ˈȯr-ˌī, -(ˌ)pō-, -ˈȯr-ē\

Definition of a posteriori for English Language Learners

  • : relating to what can be known by observation rather than through an understanding of how certain things work


Learn More about a posteriori


Seen and Heard

What made you want to look up a posteriori? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to decrease in size, extent, or degree

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • alphabet-magnets
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ