plural noun

in some classifications
: a class of flagellated unicellular organisms comprising the Chrysomonadina, Cryptomonadina, Euglenoidina, and closely related flagellate and algal organisms and being nearly equivalent in scope to Phytomastigina of other classifications

Word History


New Latin, from flagellum + -atae (from Latin, feminine plural of -atus -ate)

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Flagellatae

Cite this Entry

“Flagellatae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Flagellatae. Accessed 4 Jun. 2023.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!