Posterior

/pɒsˈtɪəriə/

Meaning & Definition

noun
The back part of something, especially the human body.
He fell and landed on his posterior.
adjective
Located at the back or rear; especially situated behind something else.
The posterior part of the car was damaged in the accident.
Occurring after; following in time.
The posterior analysis of the data revealed unexpected trends.

Etymology

From Latin 'posterior', meaning 'further back, later'.

Common Phrases and Expressions

posterior chain
The group of muscles located at the back of the body, including the hamstrings and glutes.
posterior probabilities
Probabilities that are updated in light of new evidence.

Related Words

anterior
Situated at the front; opposite of posterior.
dorsal
Relating to the back or upper side of an organism.

Slang Meanings

Slang for the buttocks.
He has a strong posterior from all that squatting.
Referring to someone who is shy or reserved, staying at the back.
Don't be posterior in the group; join in the fun!