The Collaborative International Dictionary of English v.0.48:
Semantic \Sem*an"tic\, Semantical \Sem*an"tic*al\, n. sing. or pl. [Gr. shmantikos having meaning, from sh^ma a sign.] 1. pertaining to the meanings of words. [PJC] 2. of or pertaining to semantics. [PJC]WordNet (r) 3.0 (2006):
semantic adj 1: of or relating to meaning or the study of meaning; "semantic analysis"