delthyrium

noun
del·​thy·​ri·​um
plural delthyria\-​rēə \

Definition of delthyrium 

: the opening between the beak and the hinge through which the pedicle of certain brachiopods extends

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 delthyrium

New Latin, probably irregular from Greek dēlos clear, visible, evident + thyrion little door, diminutive of thyra door

Keep scrolling for more

Learn More about delthyrium

Share delthyrium

Statistics for delthyrium

Look-up Popularity

Comments on delthyrium

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

WORD OF THE DAY

a typical or ideal example

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
True or False

Test your knowledge - and maybe learn something along the way.

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!