Source : Webster's Revised Unabridged Dictionary (1913)

Concupiscence \Con*cu"pis*cence\, n. [F., fr. L.
   concupiscentia.]
   Sexual lust; morbid carnal passion.

         Concupiscence like a pestilence walketh in darkness.
                                                  --Horne.

Source : WordNet®

concupiscence
     n : a desire for sexual intimacy [syn: {sexual desire}, {physical
         attraction}]