plural noun
Spi·​rot·​ri·​cha | \ spīˈrä‧trə̇kə\

Definition of Spirotricha

: a large order consisting of euciliate protozoans with well-developed peristome and adoral zone of membranelles and general body cilia that are uniform or variously reduced and fused into cirri and including the suborders Heterotricha, Oligotricha, and Hypotricha

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!

History and Etymology for Spirotricha

New Latin, from spir- + -tricha

Keep scrolling for more

Comments on Spirotricha

What made you want to look up Spirotricha? Please tell us where you read or heard it (including the quote, if possible).


to form ideas or theories about something

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
True or False

Test your knowledge - and maybe learn something along the way.

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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