eu·gle·na (yōō-glē'nə) n. Any of various minute single-celled freshwater organisms of the genus Euglena, characterized by the presence of chlorophyll, a reddish eyespot, and a single anterior flagellum.
[New Latin : Greek eu-, eu- + Greek glēnē, eyeball.]
Main Entry: eu·gle·na Pronunciation: yu-'glE-n& Function: noun 1capitalized: a genus of green freshwater flagellates ofthe order Euglenida often classed as algae 2: any member of the genus Euglena