arthropod

play
noun ar·thro·pod \ ˈär-thrə-ˌpäd \

Definition of arthropod

:any of a phylum (Arthropoda) of invertebrate animals (such as insects, arachnids, and crustaceans) that have a segmented body and jointed appendages, a usually chitinous exoskeleton molted at intervals, and a dorsal anterior brain connected to a ventral chain of ganglia

arthropod

adjective

arthropodan

play \är-ˈthrä-pə-dən\ adjective

Recent Examples of arthropod from the Web

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

Origin and Etymology of arthropod

New Latin Arthropoda, from arthr- + Greek pod-, pous foot — more at foot


ARTHROPOD Defined for Kids

arthropod

play
noun ar·thro·pod \ ˈär-thrə-ˌpäd \

Definition of arthropod for Students

:any of a large group of animals (as crabs, insects, and spiders) with jointed limbs and a body made up of segments


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

of yeast or being unsettled or frivolous

Get Word of the Day daily email!

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

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!