spongin en · NOUN
Etymology
From sponge + -in.
Meanings
- 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.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| spongins | Number=Plur | lexicographic |