Home ยป The formation and excretion of urine less than 500 ml in 24 hours is termed as Health MCQs The formation and excretion of urine less than 500 ml in 24 hours is termed as February 18, 2022 8 Views Q. The formation and excretion of urine less than 500 ml in 24 hours is termed as A. Anuria B. Polyuria C. Oliguria D. Pyuria Answer: Oliguria