cephalothorax

noun
ceph·​a·​lo·​tho·​rax | \ˌse-fə-lə-ˈthȯr-ˌaks \

Definition of cephalothorax 

: the united head and thorax of an arachnid or higher crustacean

Examples of cephalothorax in a Sentence

Recent Examples on the Web

Opillonids, also called harvestmen, consist of one basic body segment — plus legs — while spiders have two main body parts: the cephalothorax and abdomen. Fox News, "Fluff ball? Clump of spiders? Viral video shows something else," 3 Jan. 2014 During the molting process, tarantulas contract their abdomens, which pushes fluid into the upper body, or cephalothorax. National Geographic, "Watch a Tarantula Crawl Out of Its Own Skeleton," 24 May 2017

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

First Known Use of cephalothorax

1835, in the meaning defined above

History and Etymology for cephalothorax

International Scientific Vocabulary

Keep scrolling for more

Learn More about cephalothorax

Share cephalothorax

Statistics for cephalothorax

Look-up Popularity

Time Traveler for cephalothorax

The first known use of cephalothorax was in 1835

See more words from the same year

Keep scrolling for more

More Definitions for cephalothorax

cephalothorax

noun
ceph·​a·​lo·​tho·​rax | \ˌsef-ə-lə-ˈthō(ə)r-ˌaks, -ˈthȯ(ə)r- \

Medical Definition of cephalothorax 

: the united head and thorax of an arachnid or higher crustacean

More from Merriam-Webster on cephalothorax

Britannica.com: Encyclopedia article about cephalothorax

Comments on cephalothorax

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

WORD OF THE DAY

to enclose within walls

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

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!