American scoter

noun

: a large North American scoter (Oidemia americana), the male being coal black with a bright yellow protuberance at the base of the upper mandible, the female being dusky brown with whitish cheeks

Word History

First Known Use

1831, 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