Polycystic kidney disease (PKD) is a genetic disorder characterized by the growth of numerous cysts in the kidneys. The kidneys are two organs, each about the size of a fist, located in the upper part of a person's abdomen, toward the back. The kidneys filter wastes and extra fluid from the blood to form urine.
diagnostic (comparative more diagnostic, superlative most diagnostic) 1  of, or relating to diagnosis. 2  characteristic of a particular disease.
Definition of diagnosis. plural. diagnoses. play \-ËsÄz\. 1a : the art or act of identifying a disease from its signs and symptomsb : the decision reached by diagnosis the doctor's diagnosis. 2 biology : a concise technical description of a taxon.