: any of a taxon (Euglenophyta or Euglenida) of varied flagellates (such as a euglena) that are typically green or colorless stigma-bearing solitary microorganisms with one or two flagella emerging from a well-defined gullet
euglenoid adjective

Word History

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of euglenoid was in 1885

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Cite this Entry

“Euglenoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/euglenoid. Accessed 23 Apr. 2025.

Kids Definition

: any of a group of varied flagellates that are typically green or colorless, live alone, and have one or two flagella coming out of a food-intake opening
euglenoid adjective

Medical Definition

: any flagellate of the order Euglenida
euglenoid adjective
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