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cheilosis in Medicine

cheilosis

n.
  1. A disorder of the lips often due to riboflavin deficiency and other B-complex vitamin deficiencies and characterized by fissures, especially in the corners of the mouth.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.