Final answer:
The term 'renal' derives from the Latin word 'ren', which means kidney. It is used in biology to describe structures and processes related to the kidney.
Step-by-step explanation:
The term 'renal' derives from the Latin word 'ren', which means kidney. In biology, the term 'renal' is used to describe structures and processes related to the kidney. Some examples of renal terms include renal artery, renal tubule, and renal vein. These terms are used to describe the blood vessels, tubules, and other structures that are part of the kidney's filtration and excretion functions.