Definition of Puccinia
: a very large genus (the type of the family Pucciniaceae) that is sometimes separated into four genera and consists of heteroecious parasitic fungi having 2-celled teliospores whose pedicels do not gelatinize and aecia with a pseudoperidium and including many forms that are destructive to various economic plants — see wheat rust
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 puccinia
New Latin, from Tommaso Puccini †1735 Italian anatomist + New Latin -ia
Seen and Heard
What made you want to look up Puccinia? Please tell us where you read or heard it (including the quote, if possible).