A type of being in Harry Potter (shown especially in the fifth book, 'Harry Potter and the order of the Phoenix')who can change body parts to resemble one animal or another. If you can remember the new character showcased in this book, Tonks, is a metamorphmagus.
The metamorphmagus' nose changed from a pigs to a ducks, back and forth, amazing the two little girls.
by KagomeResurrected December 16, 2005