trichorrhexis nodosa

[nō-dōsə]
n.
  1. A condition in which minute nodes are formed in the hair shafts, weakening the hair and causing splitting and breaking.clastothrix trichoclasia
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.