Definition of spongin in English:

spongin

Line breaks: spon¦gin
Pronunciation: /ˈspʌn(d)ʒɪn
 
/

noun

[mass noun] Biochemistry
The horny or fibrous substance found in the skeleton of many sponges.
More example sentences
  • Demospongea are the dominant modern group with 600 genera; they have a skeleton formed of spongin or silica, or a mixture of the two.
  • Some spicules are formed of the mineralized substances calcium carbonate and silica, while others are made of an organic substance called spongin.
  • First of all, however, spongin is not a feature consistent of all Porifera, but may be a constituent character of the Demospongiae only.

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