Anterior | Webster's Dictionary of the English Language

·adj Before in time; antecedent.

II. Anterior ·adj Before, or toward the front, in place; as, the anterior part of the mouth;

— opposed to posterior.

anterior
antĕrĭor, ōris, adj. comp. [ante] (only in late Lat.), that is before , foremost : pars. Amm. 16,...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.