merganser

/mərˈɡænsər/
noun
  1. A type of duck with a long, slender, serrated bill, found in northern regions and known for diving for fish.
    • The merganser's saw-like bill helps it grip slippery prey.
    • A merganser surfaced with a small fish in its beak.
    • Birdwatchers spotted a flock of mergansers on the lake.
Synonyms
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