CANCERBERO Definición y sinónimos de cancerbero en el Cerberus is a mythical monster in Greek legends. Its portrayal often shows it as a multi-headed canine guarding the gates of Hades. According to some legends, Cancerbero has three heads, while in others it can have a maximum of nine heads. The term "cancerbero" is
also used to refer to a fierce and unyielding sentinel.