'Lasciviousness' definitions:

Definition of 'lasciviousness'

noun

Feeling morbid sexual desire or a propensity to lewdness [syn: prurience, pruriency, lasciviousness, carnality, lubricity]

From: GCIDE

Lascivious \Las*civ"i*ous\ (l[a^]s*s[i^]v"[i^]*[u^]s), a. [L. lascivia wantonness, fr. lascivus wanton; cf. Gr. la`stauros lecherous, lh^n to wish, Skr. lash to desire.]
1. Wanton; lewd; lustful; as, lascivious men; lascivious desires. --Milton. [1913 Webster]
2. Tending to produce voluptuous or lewd emotions. [1913 Webster]
He capers nimbly in a lady's chamber To the lascivious pleasing of a lute. --Shak. -- {Las*civ"i*ous*ly}, adv. -- {Las*civ"i*ous*ness}, n. [1913 Webster]

From: GCIDE

lasciviousness \las*civ"i*ous*ness\ n. The state or habitual condition of feeling an excessive or morbid sexual desire.
Syn: prurience, pruriency, carnality. [WordNet 1.5]