renal pelvis

noun

anatomy
: a funnel-shaped structure in each kidney that receives urine from the collecting duct for passage into the ureter and that is formed at one end by the expanded upper portion of the ureter and at the other end by the union of two or more calyxes (see calyx sense 2) of the kidney

Examples of renal pelvis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The intermittent pain, called renal colic, is caused by spasms as the walls of the renal pelvis are stretched.5 The pain may be dull, like a back strain, or intense, like a kidney punch. Jay N. Yepuri, Verywell Health, 21 Oct. 2024 This retention of fluid, in turn, increases pressure within the renal pelvis, which can dislodge a stone.20 Studies have shown that, among men, emergency room visits for kidney stones are higher in the summer and lower in the winter. Jay N. Yepuri, Verywell Health, 21 Oct. 2024 There were increases in rates of kidney and renal pelvis cancer and liver cancer. Tegan Hanlon, Anchorage Daily News, 18 Jan. 2018

Word History

First Known Use

1757, in the meaning defined above

Time Traveler
The first known use of renal pelvis was in 1757

Dictionary Entries Near renal pelvis

Cite this Entry

“Renal pelvis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/renal%20pelvis. Accessed 23 Dec. 2024.

Medical Definition

renal pelvis

noun
: a funnel-shaped structure in each kidney that is formed at one end by the expanded upper portion of the ureter lying in the renal sinus and at the other end by the union of the calyxes of the kidney
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!