filefish
/ˈfaɪlˌfɪʃ/
noun
- A type of tropical marine fish with a rough, file-like skin and a long dorsal fin.
- Filefish are known for their ability to change color to blend in with their surroundings.
- We saw a brightly colored filefish while snorkeling in the Caribbean.
- The filefish swam slowly among the coral reefs.