vertical fin
- IPA[ˈvərdəkəl fin]
- any of the unpaired fins in the midline of a fish's body, i.e. a dorsal, anal, or caudal fin.
noun: vertical fin, plural noun: vertical fins
- 更多解釋
- any of the unpaired fins in the midline of a fish's body, i.e. a dorsal, anal, or caudal fin.
Oxford Dictionary