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Meaning of sclerotized

scle•ro•tized

Pronunciation: (sklēr'u-tīzd", skler'-), [key]
— adj.
  1. (esp. of the cuticle of an arthropod) hardened by the presence of substances other than chitin, as by scleroproteins, waxes, or calcium salts.
  2. sclerosed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.