posterior
1. pos.te.ri.or \pa:-'stir-e--*r, po--\ aj [L, compar. of posterus coming after, fr. post after - more at MPOST- 1a: later in time : SUBSEQUENT 1b: logically consequent 2: situated behind : as 2a: CAUDAL 2b: DORSAL - used of human anatomy of a plant part 3: ADAXIAL, SUPERIOR - pos.te.ri.or.ly av 2. posterior n : the hinder parts of the body; specif : BUTTOCKS