"one who practices masturbation," 1818, agent noun from Latin source of masturbate (q.v.). Related: Masturbatory.
Entries linking to masturbator
masturbate v.
"produce an orgasm by stimulation of the genitals," 1839, a back-formation from masturbation, or else from Latin masturbatus, past participle of masturbari. The earlier form was mastuprate (17c.), for which see masturbation. Transitive use is by 1970. Related: Masturbated; masturbating.