lampern
/ˈlæmpən/noun
1- a lamprey of rivers and coastal waters in NW Europe（河）七鳃鳗。
1.1
- Lampetra fluviatilis, family Petromyzonidae.拉丁名Lampetra fluviatilis,七鳃鳗科。
词源
Middle English: from Old French lampreion, diminutive of lampreie 'lamprey'.