Bryozoa

plural noun
Bryo·​zoa | \ ˌbrīəˈzōə \

Definition of Bryozoa

1 : a small phylum of aquatic animals that reproduce by budding, that usually form branching, flat, or mosslike colonies permanently attached on stones or seaweeds and enclosed by an external cuticle soft and gelatinous or rigid and chitinous or calcareous, and that consist of complex zooids each having an alimentary canal with distinct mouth and anus surrounded by a true coelom and associated with a protrusible lophophore — see avicularium, vibraculum; bugula , entoprocta, gymnolaemata, phylactolaemata
2 in some classifications : a class or other division of Molluscoidea comprising the Bryozoa and the Entoprocta

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 Bryozoa

New Latin, from bry- + -zoa

Keep scrolling for more

Learn More about Bryozoa

Statistics for Bryozoa

Cite this Entry

“Bryozoa.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Bryozoa. Accessed 10 Aug. 2020.

Comments on Bryozoa

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

WORD OF THE DAY

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt painting a young scholar and his tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?

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!