Cycloidei

plural noun

Cy·​cloi·​dei

sīˈklȯidēˌī

in former classifications

: a group of fishes including those with cycloid scales (as most teleosts)

cycloidian

(ˈ)sī¦klȯidēən

adjective or noun

Word History

Etymology

New Latin, from cycl- + -oidei

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