posterior
//pɒˈstɪəriər//
Adjective
posteriorCanonical form
1
Located at or toward the back or rear; coming after in time or order.
The posterior section of the brain controls vision.
2
(Anatomy) Situated behind or at the back of a structure in the body.
The posterior part of the brain controls vision.
Noun
posteriorSingular
posteriorsPlural
1
The buttocks; a person's rear end.
He slipped on the ice and landed on his posterior.