rock fern


Definition of rock fern 

: any of various ferns that grow chiefly on or among rocks: such as

a : evergreen wood fern sense 1

b : a finely divided tropical Asiatic and Australasian fern (Cheilanthes tenuifolia) that has been implicated in Australia in an acute intoxication of cattle

c : any of several chiefly tropical ferns of the genus Asplenium

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!

Learn More about rock fern

Statistics for rock fern

Look-up Popularity

Comments on rock fern

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


to make faulty or ineffective

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
True or False

Test your knowledge - and maybe learn something along the way.

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!