brush border

noun Anatomy.
a dense array of microvilli projecting from the surface of certain epithelial tissues, as the lining of the intestinal tract.

Origin:
1900–05

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World English Dictionary
brush border
 
n
physiol See also microvillus a layer of tightly packed minute finger-like protuberances on cells that line absorptive surfaces, such as those of the intestine and kidney

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

brush border n.
An epithelial cell surface consisting of microvilli, as on the cells of the proximal tubule of the kidney.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
Using a pastry brush, lightly brush border of each with water.
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