[pos.te.ri.or] adj [L, compar. of posterus coming after, fr. post after--more at post-] (1534) 1: later in time: subsequent
2: situated behind: as a: caudal b of the human body or its parts: dorsal 3 of a plant part: adaxial, superior -- pos.te.ri.or.ly adv
[2]pos.te.ri.or n (ca. 1616): the hinder parts of the body; specif: buttocks