Main Entry: tur·bel·lar·i·an

Pronunciation: \ˌtər-bə-ˈler-ē-ən\

Function: noun

Etymology: ultimately from Latin turbellae (plural) bustle, stir, diminutive of turba confusion, crowd; from the tiny eddies created in water by the cilia

Date: 1883

: any of a class (Turbellaria) of mostly aquatic and free-living flatworms (as a planarian)

— turbellarian adjective