| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| euglenid | |
noun | |
| marine and freshwater green or colorless flagellate organism [syn: euglenoid] |
| euglenophyte | |
noun | |
| marine and freshwater green or colorless flagellate organism [syn: euglenoid] |