- 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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- physiol a layer of tightly packed minute finger-like protuberances on cells that line absorptive surfaces, such as those of the intestine and kidneySee also microvillus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- 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.