\Re"nal\ (r?"nal), a. [L. renalis, fr. renes the kidneys
or reins: cf. F. r['e]nal. See {Reins}.] (Anat.)
Of or pertaining to the kidneys; in the region of the
kidneys.
{Renal calculus} (Med.), a concretion formed in the excretory
   passages of the kidney.
{Renal capsules} or {glands}, the suprarenal capsules. See
   under {Capsule}.
{Renal casts}, {Renal colic}. (Med.) See under {Cast}, and
   {Colic}.