Definition of merganser
: any of various fish-eating diving ducks (especially genus Mergus) with a slender bill hooked at the end and serrated along the margins and usually a crested head — see common merganser
From the M-W Editors
Recent Examples of merganser from the Web
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Some attractions are a snapping turtle that likes to sun itself on a log, a variety of fish in the lake and such fish-eating birds as herons, kingfishers and mergansers.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'merganser.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Illustration of merganser
Origin and Etymology of merganser
New Latin, from Latin mergus, a waterfowl (from mergere) + anser goose — more at goose
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See words that rhyme with merganser Britannica.com: Encyclopedia article about merganser
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