plural noun
Tha·​las·​si·​nid·​ea | \ thəˌlasəˈnidēə\

Definition of Thalassinidea

: a subtribe of Anomura including small crustaceans with a thin flexible carapace, long soft abdomen, and unsymmetrical chelae that burrow in sand or mud along seashores — compare ghost shrimp

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 Thalassinidea

thalassinidean \ ⸗¦⸗⸗¦nidēən \ noun or adjective
thalassinoid \ thəˈlasəˌnȯid \ adjective

History and Etymology for Thalassinidea

New Latin, from Thalassina, genus of crustaceans (from thalass- + -ina) + -idea

Keep scrolling for more

Comments on Thalassinidea

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


recurring in steady succession

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Word Winder's CrossWinder

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

Love words? Need even more definitions?

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