lesion(redirected from flat oral lesion)
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any structural change in a bodily part resulting from injury or disease
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A structural or functional alteration due to injury or disease.
(cell and molecular biology)
A damaged site in a gene, chromosome, or protein molecule.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.