Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford American Dictionary

   vertical fin

   • IPA[ˈvərdəkəl fin]

   • n.
     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