catadromic

adjective

cata·​drom·​ic

botany

: having the lowest interior segment of a pinna nearer the rachis than the lowest superior one

Word History

Etymology

New Latin catadromus + English -ic

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