yüˈglēnə noun
Usage: capitalized
Etymology: New Latin, from eu- + Greek glēnē eyeball, socket of a joint; probably akin to Greek glainoi ornaments — more at clean
: a genus (order Euglenoidina) of green flagellates that are often classed as algae, are cosmopolitan in stagnant fresh water, usually have a distinct pellicle more or less sculptured and striated, and are capable of writhing plastic movement as well as flagellar motility — see euglenaceae