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

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 radiating and transverse fibres, which are never strong but form a fairly dense network with a small amount of spongin.

From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson

The spongin that binds the skeleton-spicules together takes the form of a colourless or yellowish transparent membrane, which is often practically invisible.

From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson

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 Annandale, Nelson

In S. carteri var. mollis both spicules and spongin are reduced to a minimum, and the parenchyma is relatively more bulky than usual.

From Freshwater Sponges, Hydroids & Polyzoa by Annandale, Nelson