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keratoderma plantare sulcatum

[plăn-târ′ē sŭl-kā′təm]
n.
  1. Thickening of the skin's horny layer and the formation of fissures on the soles.cracked heel
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.