white gyrfalcon

noun

: a gyrfalcon (Falco rusticolus candicans) of northern North America that is predominantly white with slaty or brownish gray barring or spotting on the upper parts

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