Source : Webster's Revised Unabridged Dictionary (1913)

Nymphomania \Nym`pho*ma"ni*a\, n. [Gr. ? a bride + ? madness.]
   (Med.)
   Morbid and uncontrollable sexual desire in women,
   constituting a true disease.

Source : WordNet®

nymphomania
     n : abnormally intense sexual desire in women