renal pelvis (noun)

1. In an episode of the popular cartoon show, the character's antics caused a blockage in his renal pelvis, resulting in severe pain and discomfort.

2. The artist skillfully depicted the intricate details of the renal pelvis in their painting, capturing its delicate shape and function.

3. In the comic strip, the superhero had to undergo surgery to remove a stone lodged in his renal pelvis, endangering his kidneys.

4. During the Renaissance period, the understanding of the renal pelvis and its role in urine drainage was a significant advancement in medical knowledge.