Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Entomostraca

plural noun
En·​to·​mos·​tra·​ca | \ ˌentəˈmästrə̇kə\

Definition of Entomostraca

in some classifications
: a subclass of Crustacea comprising the Branchiopoda, Ostracoda, Copepoda, and Cirripedia, groups regarded by most modern systematists as too diverse for inclusion in a single subclass, the name then being used as a term of convenience without taxonomic implications

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 Entomostraca

entomostracan \ ¦⸗⸗¦⸗⸗kən \ adjective or noun
entomostracous \ -​kəs \ adjective

History and Etymology for Entomostraca

New Latin, from entom- + -ostraca (from Greek ostrakon earthen vessel, potsherd, shell)

Keep scrolling for more

Learn More about Entomostraca

Share Entomostraca

Statistics for Entomostraca

Look-up Popularity

Comments on Entomostraca

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

Show Comments  Hide Comments 

WORD OF THE DAY

cumulate

to gather or build up little by little

Get Word of the Day daily email!

Test Your Vocabulary

Homophone Quiz

  • three-bears-two-of-them-look-like-theyre-whispering-to-a-third-bear-who-looks-chuffed-to-be-the-center-of-attention
  • In order to judge how people felt, the senator's office hired a firm to take a ______.
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!

Words at Play

Ask the Editors

Word Games