Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

Medical Dictionary

Arthropoda

play
noun plural Ar·throp·o·da \är-ˈthräp-əd-ə\

Medical Definition of Arthropoda

  1. :  a phylum of invertebrate animals (as insects, arachnids, and crustaceans) having a segmented body and jointed appendages, usually a shell of chitin molted at intervals, and an anterior brain dorsal to the alimentary canal and connected with a ventral chain of ganglia

  2. ar·thro·pod \ˈär-thrə-ˌpäd\play adjective or noun
    ar·throp·o·dan \är-ˈthräp-əd-ən\play adjective




Seen and Heard

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

WORD OF THE DAY

February 7, 2016

a slight offense

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet kittly-benders pince-nez spindrift
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ