Merriam-Webster Logo
SINCE 1828
dictionary thesaurus view recents

mesosoma

noun
Save Word
meso·​soma | \ "+ \
plural mesosomata

Definition of mesosoma

: the middle region of the body of various invertebrates especially when this cannot readily be analyzed into its primitive segmentation (as in most mollusks and in arachnids)

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!

Other Words from mesosoma

mesosomatic \ "+ \ adjective

History and Etymology for mesosoma

New Latin, from mes- + -soma

Keep scrolling for more

Learn More about mesosoma

Statistics for mesosoma

Cite this Entry

“Mesosoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mesosoma. Accessed 6 Jun. 2020.

Comments on mesosoma

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

Show Comments  Hide Comments 

WORD OF THE DAY

capricious

Listen to the pronunciation of capricious

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

May 2020 Words of the Day Quiz

  • a blooming wisteria tree
  • Which is a synonym of exiguous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

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

TAKE THE QUIZ
Love words? Need even more definitions?

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

Words at Play
Ask the Editors
Word Games