Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Thoracica

plural noun
Tho·​rac·​i·​ca | \ -sə̇kə\

Definition of Thoracica

: a division of Cirripedia including barnacles that have six thoracic segments usually bearing six pairs of cirri

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!

History and Etymology for Thoracica

New Latin, from thoracica, neuter plural of thoracicus thoracic, from Late Greek thōrakikos

Keep scrolling for more

Learn More about Thoracica

Statistics for Thoracica

Look-up Popularity

Comments on Thoracica

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

Show Comments  Hide Comments 

WORD OF THE DAY

kludge

Listen to the pronounciation of kludge

a haphazard or makeshift solution

Get Word of the Day daily email!

Test Your Vocabulary

Summer 2019 Words of the Day Quiz

  • a-bowl-of-peach-sorbet-with-cut-peaches-next-to-it
  • Which is a synonym of desideratum?
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!

Words at Play
Ask the Editors
Word Games