prothallial

adjective

pro·​thal·​li·​al

(ˈ)prō¦thalēəl

variants or less commonly prothalline

(ˈ)prō+

: of or relating to a prothallium

Word History

Etymology

New Latin prothallium + English -al or -ine

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