The Collaborative International Dictionary of English v.0.48:

Concupiscent \Con*cu"pis*cent\, a. [L. concupiscens, p. pr. of
   concupiscere, v. incho. of concupere to long for; con- +
   cupere. See Covet.]
   Having sexual lust; libidinous; lustful; lecherous;
   salacious. --Johnson.
   [1913 Webster]

WordNet (r) 3.0 (2006):

concupiscent
    adj 1: vigorously passionate [syn: lustful, lusty,
           concupiscent]