Euglenida

noun plural
Eu·gle·ni·da | \yü-ˈglē-nəd-ə \

Medical Definition of Euglenida 

: an order of protozoans of the subphylum Mastigophora comprising extremely varied flagellates that are typically green or colorless stigma-bearing solitary organisms with one or two flagella emerging anteriorly from a well-defined gullet — see euglenophyta

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