vermilion 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.
ver·mil·ion bor·der
the junction between the skin aspect of the lip and the vermilion zone. Compare: vermilion zone, vermilion transitional zone.
Farlex Partner Medical Dictionary © Farlex 2012
ver·mil·ion bor·der
(vĕr-mil'yŏn bōr'dĕr)The red margin of the upper and lower lips, which commences at the exterior edge of the intraoral labial mucosa ("moist line") and extends outward, terminating at the extraoral labial cutaneous junction; a thinly keratinized type of stratified squamous epithelium deeply penetrated by well-vascularized dermal papillae that show through the translucent epidermis to impart the typical red appearance of the lips.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
Vermilion border
The line between the lip and the skin.
Mentioned in: Maxillofacial Trauma
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
ver·mil·ion bor·der
(vĕr-mil'yŏn bōr'dĕr)Junction between skin aspect of the lip and vermilion zone.
Compare: vermilion zone
Compare: vermilion zone
Medical Dictionary for the Dental Professions © Farlex 2012