a scleroprotein occurring in the form of fibers that form the skeleton of certain sponges.

Origin of spongin

First recorded in 1865–70; sponge + -in2
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Historical Examples of spongin

British Dictionary definitions for spongin



a fibrous horny protein that forms the skeletal framework of the bath sponge and related sponges

Word Origin for spongin

C19: from German, from Latin spongia sponge + -in
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