Having finlike appendages or flukes instead of legs, as a cetacean.

A cetacean, or a sirenian.

To destroy or remove a material part of, so as to render imperfect; as, to mutilate the orations of Cicero.

destroy or injure severely; "The madman mutilates art work"

destroy or injure severely; "mutilated bodies"

To cut off or remove a limb or essential part of; to maim; to cripple; to disfigure; to hack; as, to mutilate the body, a statue, etc.

alter so as to make unrecognizable; "The tourists murdered the French language"

Deprived of, or having lost, an important part; mutilated.