• (a.) Between the kidneys; as, the interrenal body, an organ found in many fishes. • (n.) The interrenal body.
In`ter·re'nal adjective (Anat.) Between the kidneys; as, the interrenal body, an organ found in many fishes. -- noun The interrenal body. 
Type: Term Pronunciation: in′tĕr-rē′năl Definitions: 1. Between the two kidneys.