spongin

American  

[spuhn-jin] / ˈspʌn dʒɪn /

noun

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

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spongin British  

/ ˈspʌndʒɪn /

noun

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

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Etymology

Origin of spongin

First recorded in 1865–70; sponge + -in ²

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Example Sentences

See Examples For:

spongin

Another type of protein, spongin, may also be present in the mesohyl of some sponges.

From Textbooks ● Jan. 1, 2015

Skeleton with well-defined but slender radiating fibres, which contain very little spongin; transverse fibres close together but consisting for the most part of one or two spicules only.

From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale

The skeleton is variable in structure, sometimes being almost amorphous, sometimes having well-defined radiating and transverse fibres firmly compacted with spongin.

From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale

In some cases the skeleton seems to be more or less replaced by sand, the small grains of which are cemented together by the "spongin."

From Scientific American Supplement, No. 601, July 9, 1887 by Various

Spicules forming triangular meshes and occasionally arranged in vertical lines several spicules broad but without spongin.

From Freshwater Sponges, Hydroids & Polyzoa by Nelson Annandale

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