What is "regenerates"

Usage examples of "regenerates".

So male regenerates male tissue, and female regenerates female tissue-am I embarrassing you?

So male regenerates male tissue, and female regenerates female tissue—am I embarrassing you?

Chained to a rock, he is devoured by giant vultures during the day, then he regenerates so the torture can continue.

It regenerates, of course—but the appendage also regenerates a new Xest.