order Anseriformes
Noun: A taxonomic order of birds comprising waterfowl such as ducks, geese, swans, and the related screamers. Members of this order are typically characterized by webbed feet, a broad bill, and are often aquatic.
The term "order Anseriformes" is used in scientific and zoological contexts to classify a specific group of birds within biological taxonomy. * The mallard duck belongs to order Anseriformes. * Ornithologists study the migratory patterns of birds in order Anseriformes.
- In Taxonomic Hierarchy: The term is used to specify a rank (order) within the class Aves (birds). Families within this order include Anatidae (ducks, geese, swans) and Anhimidae (screamers).
- The family Anatidae is the largest within order Anseriformes.
- Anseriform (adjective): Of or relating to the order Anseriformes.
- The museum has a collection of anseriform specimens.
- Anser (noun): The genus within this order that includes many grey geese.
- Waterfowl (This is a common name for most, but not all, members; screamers are less typically called waterfowl.)
This term has a single, specific meaning in biological classification. It does not have general English usage outside scientific contexts. The word "order" here is not the common noun meaning "a command" or "a sequence," but a specific taxonomic rank.
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ducks; geese; swans; screamers
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