sclerotized

[ skleer-uh-tahyzd, skler- ]
/ ˈsklɪər əˌtaɪzd, ˈsklɛr- /

adjective

(especially of the cuticle of an arthropod) hardened by the presence of substances other than chitin, as by scleroproteins, waxes, or calcium salts.
Pathology. sclerosed.

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Origin of sclerotized

First recorded in 1960–65; sclerot(ic) + -ize + -ed2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020