spongin

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English[edit]

Etymology[edit]

sponge +‎ -in

Noun[edit]

spongin (plural spongins)

  1. A horny, sulfur-containing protein, related to keratin, that forms the skeletal structure of certain classes of sponges. A proteinaceous compound of which the spicules in Demospongiae are composed.

References[edit]

  • American Heritage Dictionary, 2006
  • Cartage, 2006

Anagrams[edit]

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