The Collaborative International Dictionary of English v.0.48:

nymphomania \nym`pho*ma"ni*a\ (n[i^]m`f[-o]*m[=a]"n[i^]*[.a]),
   n. [Gr. ny`mfh a bride + mani`a madness.] (Med.)
   An uncontrollable excessive sexual desire in women,
   constituting a true disease.
   [1913 Webster]

WordNet (r) 3.0 (2006):

nymphomania
    n 1: abnormally intense sexual desire in women

Moby Thesaurus II by Grady Ward, 1.0:

58 Moby Thesaurus words for "nymphomania":
   andromania, animality, aphrodisia, bawdiness, biological urge,
   bodily appetite, carnal desire, carnality, clitoromania,
   concupiscence, desire, dirtiness, eromania, eroticism,
   eroticomania, eroticomaniac, erotism, erotomania, fleshliness,
   fleshly lust, furor uterinus, goatishness, gynecomania, horniness,
   hot blood, hot pants, hysteromania, indecency, infantile sexuality,
   itch, lasciviousness, lecherousness, lechery, lewdness,
   libidinousness, lickerishness, lubriciousness, lubricity, lust,
   lustfulness, obscenity, passion, polymorphous perversity,
   prurience, pruriency, randiness, salaciousness, salacity,
   satyriasis, satyrism, sensuality, sexiness, sexual desire,
   sexual longing, sexual passion, sexuality, uteromania,
   venereal appetite