Renal sinus


renal sinus n.
The cavity of the kidney, containing the calices and the pelvis.

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    noun 1. a word or a combination of words by which a person, place, or thing, a body or class, or any object of thought is designated, called, or known. 2. mere designation, as distinguished from fact: He was a king in name only. 3. an appellation, title, or epithet, applied descriptively, in honor, abuse, […]

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