Anseriformes

plural noun

An·​ser·​i·​for·​mes

: an order of birds comprising the ducks, geese, swans, and mergansers and the screamers see anseres

Word History

Etymology

New Latin, from Anser + -iformes

First Known Use

1873, in the meaning defined above

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now