Definitions by K.O.O.P Aussie

Zoan 

one of the three types of devil fruit in the popular manga one piece. these fruits allows the user to transform into a particular species, if they are eaten by their named species they have no effect

Human-Human Fruit eaten by Tony Tony Chopper the straw hats first and only zoan user

Zoan by K.O.O.P Aussie June 15, 2013