Pronunciation: (tit'l-āt"), [key]
—v.t., -lat•ed, -lat•ing.
1. to excite or arouse agreeably: to titillate the fancy.
2. to tickle; excite a tingling or itching sensation in, as by touching or stroking lightly.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.