Source : Webster's Revised Unabridged Dictionary (1913)

Genitals \Gen"i*tals\, n. pl. [From {Genital}, a.: cf. L.
   genitalia.]
   The organs of generation; the sexual organs; the private
   parts.

Source : WordNet®

genitals
     n : external sex organ [syn: {genitalia}, {genital organ}, {private
         parts}, {privates}, {crotch}]