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Posterior comes from the Latin word posterus, meaning "coming after". Posterior is often used as a technical term in biology and medicine to refer to the back side of things, and is the opposite of anterior, which refers to the front side. For example, as more people took up running as a sport, doctors began to see an increase in stress fractures along the posterior as well as the anterior surface of the lower leg bones. In some technical fields, posterior may mean "later". When used as a noun, posterior simply means "buttocks".
Synonyms
Adjective
Noun
Examples of posterior in a Sentence
Fred Sassani, Austin American-Statesman, 15 Nov. 2024
In the clip, the Rare Beauty founder shakes her hips, squats to the floor and shows off her posterior to the camera.
—Hannah Dailey, Billboard, 3 Sep. 2019
Bryan Alexander, USA TODAY, 8 Jan. 2024
Those pert patriotic posteriors are all-natural, made in the U.S.A., baby.
—EW.com, 26 Oct. 2023
See all Example Sentences for posterior 
Dictionary Entries Near posterior
Cite this Entry
“Posterior.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/posterior. Accessed 28 Nov. 2024.
Copy CitationKids Definition
posterior
1 of 2 adjective
posterior
2 of 2 noun
Medical Definition
posterior
1 of 2 adjective
posterior
2 of 2 noun
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