ironfins
nounUK /ˈaɪənfɪnz/
US /ˈaɪərnfɪnz/
Ironfins are fish with hard, metal-like fins.
The ironfins swam quickly through the cold water.
OTHER MEANINGS
2. A nickname for a tough, strong swimmer.
Everyone called the champion swimmer Ironfins.
3. A type of strong, rigid diving flipper.
She put on her ironfins before the deep dive.
4. A fictional sea creature in stories.
The tale told of ironfins guarding the sunken ship.