brush border

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border

 [bor´der]
a bounding line, edge, or surface.
brush border a specialization of the free surface of a cell, consisting of minute cylindrical processes (microvilli) that greatly increase the surface area.
Brush border, characterized by closely packed microvilli. From Dorland's, 2000.
vermilion border the exposed red portion of the upper and lower lips.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

brush bor·der

the apical epithelial surface bearing closely packed microvilli about 2 mcm long, such as occur on the cells of the proximal tubule of the nephron.
Synonym(s): limbus penicillatus
Farlex Partner Medical Dictionary © Farlex 2012
A specialized portion of the free or apical aspect of certain epithelial cells—e.g., of the GI tract—consisting of closely packed microvilli that facilitate absorption; brush border cells line the luminal surface of the intestine and proximal convoluted tubules of the kidneys; the BB contains absorptive microvilli and glycocalyx—which is rich in hydrolytic enzymes
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

brush border

Physiology A specialized portion of the free or apical aspect of certain epithelial cells–eg, of the GI tract, consisting of closely packed microvilli that facilitate absorption; brush border cells line the luminal surface of the intestine and proximal convoluted tubules of the kidneys; the BB contains absorptive microvilli and glycocalyx–which is rich in hydrolytic enzymes
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

brush bor·der

(brŭsh bōr'dĕr)
An epithelial surface bearing closely packed microvilli about 2 mcm long, such as occurs in the proximal tubule of the nephron.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

brush border

see MICROVILLUS.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005