SINCE 1828
dictionary
thesaurus

prosoma

noun
Save Word
pro·​so·​ma | \ (ˌ)prō-ˈsō-mə How to pronounce prosoma (audio) \

Definition of prosoma

: the anterior region of the body of an invertebrate (such as an arachnid) especially when the segmentation is suppressed or obscured especially : cephalothorax

Examples of prosoma in a Sentence

Recent Examples on the Web The head, or prosoma, houses most vital organs, including the heart and the brain. — National Geographic, 20 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'prosoma.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of prosoma

1853, in the meaning defined above

History and Etymology for prosoma

New Latin, from Greek pro- + sōma body

Learn More About prosoma

Time Traveler for prosoma

Time Traveler

The first known use of prosoma was in 1853

See more words from the same year

Dictionary Entries Near prosoma

prosogyrate

prosoma

proso millet

See More Nearby Entries 

Statistics for prosoma

Cite this Entry

“Prosoma.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prosoma. Accessed 25 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

noisome

Listen to the pronunciation of noisome

See Definitions and Examples »

Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
True or False

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

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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