renal pyramid

noun

Definition of renal pyramid

anatomy
: any of the somewhat triangular- or wedge-shaped masses of tissue of the inner medulla (see medulla sense 2a) region of the kidney that project as the renal papillae into the renal pelvis, and have a striated appearance due to the presence of collecting tubules and collecting ducts

First Known Use of renal pyramid

1861, in the meaning defined above

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The first known use of renal pyramid was in 1861

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Cite this Entry

“Renal pyramid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/renal%20pyramid. Accessed 20 Sep. 2020.

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More Definitions for renal pyramid

renal pyramid

noun

Medical Definition of renal pyramid

: any of the somewhat triangular- or wedge-shaped masses of tissue of the inner medulla region of the kidney that project as the renal papillae into the renal pelvis, and have a striated appearance due to the presence of collecting tubules and collecting ducts

called also Malpighian pyramid

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