SINCE 1828
dictionary
thesaurus
view recents

Orbitolina

noun
Save Word
Or·​bi·​to·​li·​na | \ -lēnə \

Definition of Orbitolina

: a genus of foraminiferans very abundant in the Cretaceous having a bowl-shaped or depressed conic siliceous test with agglutinated sandy particles

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 Orbitolina

New Latin, from Orbitolites + -ina

Keep scrolling for more

Learn More About Orbitolina

Dictionary Entries Near Orbitolina

Orbitoides

Orbitolina

orbitolite

See More Nearby Entries 

Statistics for Orbitolina

Cite this Entry

“Orbitolina.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Orbitolina. Accessed 22 Oct. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon
Seen & Heard
People are talking about

WORD OF THE DAY

devotion

Listen to the pronunciation of devotion

See Definitions and Examples »

Test Your Vocabulary

Dog Words Quiz

  • shiba puppy more or less demanding cuddles
  • Which of the following animals has a dog in its etymology?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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