'Posterior' definitions:

Definition of 'posterior'

From: WordNet
adjective
Located at or near or behind a part or near the end of a structure [ant: anterior]
adjective
Coming at a subsequent time or stage; "without ulterior argument"; "the mood posterior to" [syn: later(a), ulterior, posterior]
noun
The fleshy part of the human body that you sit on; "he deserves a good kick in the butt"; "are you going to sit on your fanny and do nothing?" [syn: buttocks, nates, arse, butt, backside, bum, buns, can, fundament, hindquarters, hind end, keister, posterior, prat, rear, rear end, rump, stern, seat, tail, tail end, tooshie, tush, bottom, behind, derriere, fanny, ass]
noun
A tooth situated at the back of the mouth [syn: back tooth, posterior]

Definition of 'Posterior'

From: GCIDE
  • Posterior \Pos*te"ri*or\ (p[o^]s*t[=e]"r[i^]*[~e]r), a. [L. posterior, compar. of posterus coming after, from post after. See Post-.]
  • 1. Later in time; hence, later in the order of proceeding or moving; coming after; -- opposed to prior. [1913 Webster]
  • Hesiod was posterior to Homer. --Broome. [1913 Webster]
  • 2. Situated behind; hinder; -- opposed to anterior. [1913 Webster]
  • 3. (Anat.) At or toward the caudal extremity; caudal; -- in human anatomy often used for dorsal. [1913 Webster]
  • 4. (Bot.) On the side next the axis of inflorescence; -- said of an axillary flower. --Gray. [1913 Webster]