Kidney brush border neutral proteinase, also known as renal brush border neutral proteinase or simply brush border neutral proteinase, refers to a specific enzyme found in the kidneys. This proteinase plays a crucial role in the breakdown of proteins within the brush border membrane of the kidney tubules. While there may not be widely used synonyms for this specific term, it can be referred to as kidney proteinase, renal proteinase, brush border proteinase, or renal tubular proteinase. These terminologies represent alternative ways to describe the same vital enzyme involved in protein digestion within the kidney's brush border membrane.