The Collaborative International Dictionary of English v.0.48:

genitalia \genitalia\ n.
   The sex organs, especially the external sex organs, called
   the external genitalia; the genitals.

   Syn: genital, genitals, private parts, privates, crotch.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

genitalia
    n 1: external sex organ [syn: genitalia, genital organ,
         genitals, private parts, privates, crotch]