Definition of Zygopteraceae
: a family of primitive Paleozoic ferns of Europe and the U.S. having pinnae in two or four series at an angle to the plane of the leaf blade
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.
Join MWU now and get access to America’s largest dictionary, with:
- 300,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of zygopteraceae
New Latin, from Zygopteris, type genus + -aceae
Seen and Heard
What made you want to look up Zygopteraceae? Please tell us where you read or heard it (including the quote, if possible).