cheilostome

noun

chei·​lo·​stome ˈkī-lə-ˌstōm How to pronounce cheilostome (audio)
variants or less commonly chilostome
plural cheilostomes also chilostomes
: a bryozoan of the order Cheilostomata
Cheilostomes are a diverse group of predominantly sessile invertebrates that have been abundant on the sea floor for about 100 million years.Jeremy B. C. Jackson and Alan H. Cheetham, Science, 4 May 1990

Word History

Etymology

borrowed from New Latin Cheilostoma, singular of Cheilostomata cheilostomata

First Known Use

1896, in the meaning defined above

Time Traveler
The first known use of cheilostome was in 1896

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 cheilostome

Cite this Entry

“Cheilostome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cheilostome. Accessed 22 May. 2024.

Love words? Need even more definitions?

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