sawbill

Từ điển WordNet v3.1 - WordNet Dictionary

noun

large crested fish-eating diving duck having a slender hooked bill with serrated edges
• Syn:
merganser, fish duck, sheldrake
• Hypernyms:
sea duck
• Hyponyms:
goosander, Mergus merganser, American merganser, Mergus merganser americanus, red-breasted merganser,
Mergus serrator, smew, Mergus albellus, hooded merganser, hooded sheldrake, Lophodytes cucullatus
• Member Holonyms:
Mergus, genus Mergus