[1] : The Collaborative International Dictionary of English v.0.48

masturbate \masturbate\ v. i. imp.  p. p. masturbated; p.
   pr.  vb. n. masturbating.
   to achieve sexual gratification by stimulating one's own
   sexual organs, without the aid of a partner; -- typically to
   the point of orgasm. -- masturbator, n.

   syn: wank, she-bop, jack off, jerk off, whack off, beat the
        meat.
        wordnet 1.5
see also:
masturbated masturbating masturbator 

[2] : WordNet (r) 2.0

masturbator
     n : a person who practices masturbation syn: onanist
see also:
onanist 

Masturbator >> M Words
Masturbator, definition of term: Masturbator
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