1. located behind or at the back of something
Usage: formal; technical
2. coming after in time or order
Usage: formal

1. the buttocks
Usage: humorous; euphemistic

Examples

• The posterior wall of the building was damaged in the storm.
• The doctor examined the posterior part of the patient’s knee.
• Posterior events proved his theory correct.
• The data from posterior studies supported the initial findings.
• He fell and landed hard on his posterior.
• The child sat down on her posterior with a thump.