blanch(redirected from blenches)
Also found in: Dictionary, Thesaurus.
to become pale.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. To become white or pale, as skin or mucous membrane affected by vasoconstriction.
2. To whiten or bleach a surface or substance.
[O.Fr. blanchir, fr. blanc, white]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012