Source : Webster's Revised Unabridged Dictionary (1913)

Eroticism \E*rot"i*cism\, n.
   Erotic quality.

Source : WordNet®

eroticism
     n 1: a state of anticipation of sexuality [syn: {erotism}]
     2: the arousal of feelings of sexual desire [syn: {amorousness},
         {erotism}, {sexiness}, {amativeness}]