Definitions for: Lexical

[adj] of or relating to words; "lexical decision task"
[adj] of or relating to dictionaries

Webster (1913) Definition: Lex"ic*al (-[i^]*kal), a.
Of or pertaining to a lexicon, to lexicography, or words;
according or conforming to a lexicon. -- Lex"ic*al*ly, adv.