The Collaborative International Dictionary of English v.0.48:

Legislator \Leg"is*la`tor\ (l[e^]j"[i^]s*l[=a]`t[~e]r), n. [L.
   legis lator, prop., a proposer of a law; lex, legis, law +
   lator a proposer, bearer, fr. latus, used as p. p. of ferre
   to bear: cf. F. l['e]gislateur. See Legal, and Tolerate.]
   A lawgiver; one who makes laws for a state or community; a
   member of a legislative body.
   [1913 Webster]

         The legislators in ancient and heroical times. --Bacon.
   [1913 Webster]

         Many of the legislators themselves had taken an oath of
         abjuration of his Majesty's person and family. --E.
                                                  Phillips.
   [1913 Webster]

WordNet (r) 3.0 (2006):

legislator
    n 1: someone who makes or enacts laws