Aphrodisiac refers to a number of compounds that produce heightened sexual desire and awareness in some humanoid species.
According to William T. Riker, an aphrodisiac is "something used to stimulate or enhance sexual pleasure". Data was not familiar with the term. (TNG: "Angel One")
Humans have, at various times, used aphrodisiacs including the ground horn of a rhinoceros. (ENT: "Fight or Flight")
Certain cultures consider perfume an aphrodisiac. (TNG: "Angel One")
In 2373 Quark attempted to smuggle the illegal aphrodisiac Regalian liquid crystal onto Deep Space 9. (DS9: "The Ship")