from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A reddish, pustulelike structure that is formed on the tissue of a plant infected by a rust fungus and produces uredospores.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The reddish pustule that occurs on the leaves of a plant infected with rust fungus
from The Century Dictionary and Cyclopedia
- n. A name used by Arthur for the uredosorus of uredineal fungi.
New Latin ūrēdinium, from Latin ūrēdō, ūrēdin-, blight, from ūrere, to burn.(American Heritage® Dictionary of the English Language, Fourth Edition)