Main Entry: sclero·pro·tein

Pronunciation: \ˌskler-ō-ˈprō-ˌtēn, -ˈprōt-ē-ən\

Function: noun

: any of various proteins (as collagen and keratin) that occur especially in connective and skeletal tissues, are usually insoluble in aqueous solvents, and are resistant to chemical reagents—called also albuminoid