plural noun
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

Keep scrolling for more

Comments on Psilotaceae

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


tired or exhausted

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

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