It comes from the Latin word "gustus," meaning "taste."
Here are some examples of how "gustatory" might be used:
* "The chef's creation was a delight to the gustatory senses."
* "The wine's complex flavor profile presented a unique gustatory experience."
* "The loss of her sense of smell affected her gustatory perception."
Essentially, anything related to the act of tasting or the perception of flavors can be described as "gustatory".