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anhidrotic ectodermal dysplasia

n.
  1. The hereditary absence of sweat glands characterized by heat intolerance, finely wrinkled skin, sunken nose, malformed and missing teeth, and sparse fragile hair.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.