actinosome

noun

ac·​tin·​o·​some
ak-ˈti-nə-ˌsōm
variants or less commonly actinosoma
ˌak-tə-(ˌ)nō-ˈsō-mə
plural -s
: the entire body of a simple or compound coelenterate

Word History

Etymology

actinosome from actin- + -some; actinosoma from New Latin, from actin- + -soma

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of actinosome was in 1881

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 actinosome

Cite this Entry

“Actinosome.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/actinosome. Accessed 21 Nov. 2024.

Love words? Need even more definitions?

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