'titillation' definitions:

Definition of 'titillation'

noun

A tingling feeling of excitement (as from teasing or tickling)

noun

An agreeable arousal

noun

The act of tickling [syn: tickle, tickling, titillation]

From: GCIDE

titillation \tit`il*la"tion\ (t[i^]t`[i^]l*l[=a]"sh[u^]n), n. [L. titillatio: cf. F. titillation.]
1. The act of tickling, or the state of being tickled; a tickling sensation. --A. Tucker. [1913 Webster]
2. Any pleasurable sensation. [1913 Webster]
Those titillations that reach no higher than the senses. --Glanvill. [1913 Webster]