polycystic

As a noun polycystin

is (protein) any of a group of glycoproteins, mutation of which is implicated in polycystic kidney disease.

As an adjective polycystic is

(medicine) having many cysts.

As adjectives the difference between polycystid and polycystic

is that polycystid is pertaining to the Polycystidea, or the Polycystina while polycystic is having many cysts.

As a noun polycystid

is one of the Polycystidea.

As adjectives the difference between polycystic and multicystic

is that polycystic is (medicine) having many cysts while multicystic is polycystic.

As adjectives the difference between polycystic and nonpolycystic

is that polycystic is (medicine) having many cysts while nonpolycystic is not polycystic.