protrochula

noun
pro·​troch·​u·​la | \ prō‧ˈträkyələ \
plural -s

Definition of protrochula

: a hypothetical free-swimming primitive organism resembling a simple trochophore and regarded as indicating the way of transition from radial to bilateral symmetry

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 protrochula

New Latin, from pro- entry 1 + troch- + -ula (feminine of -ulus -ule)

Learn More About protrochula

Dictionary Entries Near protrochula

protriaene

protrochula

protrudable

See More Nearby Entries 

Statistics for protrochula

Cite this Entry

“Protrochula.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/protrochula. Accessed 24 Jun. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

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!