sphenethmoid

adjective

sphen·​ethmoid

(ˈ)sfēn+

: of, relating to, or being a bone of the skull that surrounds the anterior end of the brain in many amphibians

Word History

Etymology

sphen- + ethmoid

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