名詞 loon:

1. a worthless lazy fellow
2. large somewhat primitive fish-eating diving bird of the northern hemisphere having webbed feet placed far back; related to the grebes
   同義詞：diver
3. a person with confused ideas; incapable of serious thought
   同義詞：addle-head, addlehead, birdbrain

loon

n.（名詞）
Any of several fish-eating, diving birds of the genusGavia of northern regions, having a short tail, webbed feet, and a laughlike cry.
潛鳥：一種生活在北部地區(qū)的潛鳥 屬食魚潛水鳥，尾部短、腳上有蹼、叫聲象人的笑聲

來源：
[Of Scandinavian origin]
[源于斯堪的納維亞語的]

loon
loon 2

n.Informal （名詞）【非正式用語】
One who is crazy or deranged.
瘋子：失去理智或神經(jīng)錯亂的人

來源：
Middle English louen [rogue]
中古英語 louen [流氓]