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 of brush border

First recorded in 1900–05

British Dictionary definitions for brush border

brush border

noun

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

Medical definitions for brush border

brush border

n.

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