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2. (Animals) any of various hummingbirds of the genus Ramphodon
[C19: so called because of their serrated bills]
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|Noun||1.||sawbill - large crested fish-eating diving duck having a slender hooked bill with serrated edges|
sea duck - any of various large diving ducks found along the seacoast: eider; scoter; merganser
American merganser, Mergus merganser americanus - common North American diving duck considered a variety of the European goosander