The connective tissue and fat surrounding the kidney. ... Origin: peri-+ G. Nephros, kidney ... (05 Mar 2000) ... 
(per″ĭ-nef´re-әm) the peritoneal envelope and other tissues around the kidney. adj., perineph´rial., adj.
Type: Term Pronunciation: per′i-nef′rē-ŭm, -nef′rē-ă Definitions: 1. The connective tissue and fat surrounding the kidney.
perinephrium (s), perinephiria (pl) The connective and fatty tissue that envelops or surrounds a kidney.