Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Rotalia

noun
Ro·​ta·​lia | \rōˈtālēə\

Definition of Rotalia 

: a genus of foraminiferans having a finely perforated test with the segments in a turbinoid spiral and with septa composed of two lamellae between which are anastomosing canals

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 Rotalia

rotalian \ -​lēən \ adjective or noun
rotaliform \ -​ləˌfȯrm \ or rotaliiform \ -​lēəˌfȯrm \ adjective

History and Etymology for Rotalia

New Latin, from Late Latin rotalis + New Latin -ia

Keep scrolling for more

Learn More about Rotalia

Dictionary Entries near Rotalia

rotacism

rotal

Rotala

Rotalia

rotameter

rotan

Rotarian

Statistics for Rotalia

Look-up Popularity

Comments on Rotalia

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

Show Comments  Hide Comments 

WORD OF THE DAY

tomfoolery

playful or foolish behavior

Get Word of the Day daily email!

Test Your Vocabulary

Autumn Words of the Day 2018

  • a-top-down-image-of-road-through-an-autumn-forest
  • Which is a synonym of fugacious?
True or False

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

TAKE THE QUIZ
Word Winder's CrossWinder

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