western diamond rattlesnake

noun

variants or western diamondback

: a large and notably venomous rattlesnake (Crotalus atrox) of dry areas of the southwestern U.S. and adjacent Mexico with a predominantly grayish to buffy ground, large light-margined rhomboid to diamond-shaped blotches on the back, and a black and white ringed tail

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