Etapteris

noun

Etap·​ter·​is

ə̇ˈtaptərə̇s,

āˈ-,

ēˈ-

: a form genus of Paleozoic ferns represented only by fossil leaves which are pinnate and with primary pinnal alternate on the rachis

Word History

Etymology

New Latin, from Greek ēta eta + New Latin -pteris

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