1. Later in time; hence, later in the order of proceeding or moving; coming after; opposed to prior. "Hesiod was posterior to Homer." (Broome)

2. Situated behind; hinder; opposed to anterior.

3. <anatomy> at or toward the caudal extremity; caudal; in human anatomy often used for dorsal.

4. <botany> On the side next the axis of inflorescence; said of an axillary flower.

Origin: L. Posterior, compar. Of posterus coming after, from post after. See Post-.

(01 Mar 1998)