plural noun
Hy·​me·​no·​phyl·​la·​ce·​ae | \ ˌhīmə(ˌ)nōfə̇ˈlāsēˌē\

Definition of Hymenophyllaceae

: a family of ferns having delicate fronds with sessile sporangia on a receptacle resembling a bristle and surrounded by a cup-shaped, tubular, or 2-valved involucre

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 Hymenophyllaceae

hymenophyllaceous \ ¦⸗⸗(ˌ)⸗⸗¦lāshəs \ adjective

History and Etymology for Hymenophyllaceae

New Latin, from Hymenophyllum, type genus + -aceae

Keep scrolling for more

Comments on Hymenophyllaceae

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


marked by a state of overwhelming emotion

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Word Winder's CrossWinder

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!