A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet. As a result of their plant diet, herbivorous animals typically have mouthparts adapted to rasping or grinding.
Peripeteia is the reversal from one state of affairs to its opposite. Some element in the plot effects a reversal, so that the hero who thought he was in good shape suddenly finds that all is lost, or vice versa. Anagnorisis is a change from ignorance to knowledge.
The perineum is the diamond-shaped area that extends from the anus all the way up to the male or female reproductive organs. The term is usually used to describe just the superficial structures like the penis, anal opening, and outer vaginal lips.