etymon
- n a simple form inferred as the common basis from which related words in several languages can be derived by linguistic processes
eu
- n a bivalent and trivalent metallic element of the rare earth group
- n an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members
euarctos
- n American black bears; in some classifications not a separate genus from Ursus
euarctos americanus
- n brown to black North American bear; smaller and less ferocious than the brown bear
eubacteria
- n a large group of bacteria having rigid cell walls; motile types have flagella
eubacteriales
- n one of two usually recognized orders of true bacteria; Gram-positive spherical or rod-shaped forms; some are motile; in some classifications considered an order of Schizomycetes