solar cheilitis

[sōlər]
n.
  1. Mucosal atrophy, crusting, and fissuring of the border of the lips in old individuals, resulting from chronic exposure to sunlight.actinic cheilitis
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.