fish duck

Definitions of fish duck
  1. noun
    large crested fish-eating diving duck having a slender hooked bill with serrated edges
    synonyms: merganser, sawbill, sheldrake
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    types:
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    Mergus merganser, goosander
    common merganser of Europe and North America
    American merganser, Mergus merganser americanus
    common North American diving duck considered a variety of the European goosander
    Mergus serrator, red-breasted merganser
    widely distributed merganser of America and Europe
    Mergus albellus, smew
    smallest merganser and most expert diver; found in northern Eurasia
    Lophodytes cucullatus, hooded merganser, hooded sheldrake
    small North American duck with a high circular crest on the male's head
    type of:
    sea duck
    any of various large diving ducks found along the seacoast: eider; scoter; merganser
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