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)