SINCE 1828
dictionary
thesaurus

Psilotaceae

plural noun
Save Word
Psi·​lo·​ta·​ce·​ae | \ ˌsīlōˈtāsēˌē \

Definition of Psilotaceae

: a family of plants that are usually placed in order Psilotales and are characterized by nearly naked stems, minute scalelike leaves, and 2- or 3-celled sporangia — compare psilotum , tmesipteris

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 Psilotaceae

psilotaceous \ ¦⸗⸗¦tāshəs \ adjective

History and Etymology for Psilotaceae

New Latin, from Psilotum, type genus + -aceae

Learn More About Psilotaceae

Dictionary Entries Near Psilotaceae

Psilostrophe

Psilotaceae

Psilotales

See More Nearby Entries 

Statistics for Psilotaceae

Cite this Entry

“Psilotaceae.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Psilotaceae. Accessed 4 Jul. 2022.

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

WORD OF THE DAY

Yankee

Listen to the pronunciation of Yankee

See Definitions and Examples »

Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!

Words at Play
Ask the Editors
Word Games