Microdrili

plural noun

Mi·​cro·​dri·​li

in some classifications

: a group of Oligochaeta that comprises slender elongated predominantly aquatic worms lacking a capillary network on the nephridium and that is nearly coextensive with Archioligochaeta compare megadrili

Word History

Etymology

New Latin, from micr- + -drili (from Greek drilos earthworm)

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