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 …

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

Nov 6, 2025 · 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.

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

Dec 5, 2025 · Borrowed from Latin posterior (“that comes or follows after; later, latter”).

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

relating to the back or spinal part of the body.