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Related to spongin: osculum, spongocoel


A sulfur-containing protein similar to collagen that forms the elastic fibrous structure of certain sponges.


(Biochemistry) a fibrous horny protein that forms the skeletal framework of the bath sponge and related sponges
[C19: from German, from Latin spongia sponge + -in]


(ˈspʌn dʒɪn)

a fibrous protein that is the main constituent of the skeleton in certain sponges.
References in classic literature ?
You ain't goin' to do no spongin' off me just because I'm marryin' your sister.
Since then, other authors have examined this phenomenon, describing different examples of inorganic particles embedded in the spongin skeletons of these animals.
anchorata can be explained by the greater presence of spongin, a collagen constituent of the organic skeleton, a feature more representative in mass for members of the order Halichondrida than the inorganic skeleton (Brusca & Brusca, 2003).
These preparations were analyzed under a Leitz Wetzlar compound microscope, identifying and measuring different spicule and spongin fiber types.
In the first case, the semi-lotic portion of the reservoir is recommended for the production of hard sponges because of the immediate availability of silica provided by the river, while, in the second case; the lentic portion is suitable, where the production of soft voluminous specimens was generalized, due to the greater quantities of spongin and organic components and the reduced number of spicules within the structure of the sponges.
Of course, the most interesting property of spongin is that it can absorb large amounts of water.
The mesohyle was eventually necrotized, leaving large areas of the supportive framework of fibrous collagen (spongin) visible (Fig.
Bacterial attack of spongin skeleton during the 1986-1990 Mediterranean sponge disease.