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 …

POSTERIOR definition: situated behind or at the rear of; hinder (anterior ). See examples of posterior used in a sentence.

POSTERIOR meaning: 1. positioned at or towards the back 2. later in time 3. your bottom: . Learn more.

posterior (pɒˈstɪərɪə) adj 1. situated at the back of or behind something 2. coming after or following another in a series

posterior in American English (pɑsˈtɪriər ) adjective Origin: L, compar. of posterus, following < post, after: see post-

There are nine meanings listed in OED's entry for the word posterior, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Definition of posterior adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Jan 2, 2026 · Anterior refers to the ‘front’, and posterior refers to the ‘back’. Putting this in context, the heart is posterior to the sternum because it lies behind it.

pos•te•ri•or /pɑˈstɪriɚ, poʊ-/ adj. [before a noun] located behind or at the rear of. coming after (something) in order or in time; later. n. [countable] Anatomy the lower, bottom parts or rump …

The posterior probability is a type of conditional probability that results from updating the prior probability with information summarized by the likelihood via an application of Bayes' rule. [1] …