Answer:
The statement an eponym is a disease, structure, operation or procedure named by the person who first discovered or described it is true.
Step-by-step explanation:
The term eponym corresponds to the name given to a discovery in honor of the person who made it. It is a Greek word that means "the name that is given after".
In medicine, an anatomical structure, disease, procedure, instrument or surgery is usually named after the person who first discovered and documented it.
An example of an eponymous name is the process of Pasteurization, named for the scientist who described and founded it, Louis Pasteur.