noun
- fibrous proteins that form the skeletal framework of certain sponges
Usage: biology; plural form
Examples
- The bath sponge’s soft texture comes from its spongins.
- Scientists studied the spongins to understand the sponge’s structure.
- Natural sponges contain spongins that make them flexible.
- The researcher extracted spongins from the marine specimen.
- Spongins give commercial sponges their absorbent properties.