Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

chilarium

noun
chi·​lar·​i·​um | \ kīˈla(a)rēəm\
plural chilaria\ -​ēə \

Definition of chilarium

: one of a pair of anatomical processes between the bases of the last (fourth) pair of walking legs in the horseshoe crab

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 chilarium

New Latin, from chil- + -arium

Keep scrolling for more

Learn More about chilarium

Dictionary Entries near chilarium

chil-

chilacayote

chilaquiles

chilarium

chilblain

Chilcat

Chilcotin

Statistics for chilarium

Look-up Popularity

Comments on chilarium

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

Show Comments  Hide Comments 

WORD OF THE DAY

demeanor

Listen to the pronounciation of demeanor

behavior toward others

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Add Diction

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