Definition of euglenoid
: any of a taxon (Euglenophyta or Euglenida) of varied flagellates (as a euglena ) that are typically green or colorless stigma-bearing solitary microorganisms with one or two flagella emerging from a well-defined gullet
First Known Use of euglenoid
Seen and Heard
What made you want to look up euglenoid? Please tell us where you read or heard it (including the quote, if possible).