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sclerotin
scler·o·tin [ sklrətin, sklérrətin ]


noun 
Definition:
 
protein that hardens chitin: an insoluble protein that hardens and darkens the chitin on the outer skeleton of arthropods
[Mid-20th century. <sclero- after words such as keratin]
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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