echinal

adjective

echi·​nal

ə̇ˈkīnᵊl,

ēˈ-,

e-;

ˈekənᵊl

: relating to a sea urchin

Word History

Etymology

echin- + -al

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