Definition of Peridermium
: a form genus of rust fungi having only the pycnial and aecial stages, characterized by the irregularly split or torn peridium, and formerly including many fungi that have since the discovery of their telial stages been placed in various other genera (as Cronartium and Coleosporium)
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 peridermium
New Latin, from peri- + derm- + -ium
Seen and Heard
What made you want to look up Peridermium? Please tell us where you read or heard it (including the quote, if possible).