cunnilingus

from WordNet (r) 3.0 (2006)

cunnilingus
    n 1: oral stimulation of the vulva or clitoris [syn:
         {cunnilingus}, {cunnilinctus}]

from The Collaborative International Dictionary of English v.0.48

cunnilingus \cun`ni*lin"gus\ n. [NL., fr. L. cunnus vulva +
   lingere to lick.]
   Stimulation of the vulva or clitoris of one person by the
   tongue of another, for the purpose of giving sexual
   gratification.

   Syn: cunnilinctus.
        [WordNet 1.5]