1. Located at or towards the rear of an object
   "The posterior legs of the insect are adapted for jumping"
    
2. Coming at a subsequent time or stage
   "the mood posterior to";
   - later, ulterior

1. [informal] The fleshy part of the human body that you sit on
   "he deserves a good kick in the posterior";
   - buttocks, nates [informal, technical], butt [N. Amer, informal], backside [informal], bum [Brit, informal], buns [N. Amer, informal], can [N. Amer, informal], fundament [informal], hindquarters [informal], hind end [informal], rear [informal], rear end [informal], rump [informal], stern [informal], seat [informal], tail [N. Amer, informal], tail end [informal], tooshie [informal], tush [N. Amer, informal], bottom [informal], behind [informal], derriere [informal], patootie [US, informal], botty [informal], duff [N. Amer, informal], bahookie [UK, dialect, informal], booty [N. Amer, informal], heinie [US, informal], tushy [N. Amer, informal], derrière [informal]
    
2. A tooth situated at the back of the mouth
   "The dentist found a cavity in one of his posteriors";
   - back tooth
    
3. (statistics) the probability distribution of parameters given observed data, as derived via Bayes' theorem
   "The Bayesian analysis yielded a posterior distribution for the model parameters"

Derived forms: posteriors

See also: back, caudal, hind, hinder, position, retral, spatial relation, subsequent

Type of: body part, chopper [informal], distribution, probability distribution, statistical distribution, tooth

Antonym: anterior

Part of: body, torso, trunk

Encyclopedia: Posterior