renoperiˈcardial,a.Physiol. [f.reno- as comb. form of L. rēn kidney.] Pertaining to the kidneys and pericardium. 1883E. R. Lankester in Encycl.Brit. XVI. 676/2 Reno⁓pericardial orifice placing the left renal sac..in communication with the viscero-pericardial sac.