Definition of Dryopteris
: a large cosmopolitan genus of ferns (family Polypodiaceae) having the indusium reniform or orbicular with a deep sinus and comprising the shield ferns
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!
Origin and Etymology of dryopteris
New Latin, from Latin, a kind of fern, from Greek, from dry- + pteris, a kind of fern, from pteron feather
Seen and Heard
What made you want to look up Dryopteris? Please tell us where you read or heard it (including the quote, if possible).