plural noun
cryp·​to·​zoa | \ ˌkriptəˈzōə \

Definition of cryptozoa

1 : the animals that live a cryptobiotic life among the organic debris of a forest floor
2 : structures in Precambrian rocks thought to be the remains of primitive life — compare cryptozoon

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!

First Known Use of cryptozoa

1911, in the meaning defined at sense 1

History and Etymology for cryptozoa

New Latin, from crypt- + -zoa

Learn More About cryptozoa

Time Traveler for cryptozoa

Time Traveler

The first known use of cryptozoa was in 1911

See more words from the same year

Dictionary Entries Near cryptozoa




See More Nearby Entries 

Statistics for cryptozoa

Cite this Entry

“Cryptozoa.” Dictionary, Merriam-Webster, Accessed 30 Nov. 2021.

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


Test Your Vocabulary

Name that Thing: Flower Edition

Name That Thing

Test your visual vocabulary with our 10-question challenge!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!