something that excites; an agent that arouses or is held to arouse sexual desire
"To me, one of the most successful attributes of an aphrodisiac meal are colors, aromas, tastes and textures that wake up the palate and challenge the mind." Amy Reiley, quoted by Sarah Kershaw in NYTimes.com, February 9, 2010
About the word:
Aphrodite, Greek goddess of love (who was infatuated with Adonis) gave the Greeks the words 'aphrodisia' (heterosexual pleasure) and 'aphrodisiakos' (a gem with aphrodisiac powers).