Definitions

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.

Etymologies

New Latin ūrēdinium, from Latin ūrēdō, ūrēdin-, blight, from ūrere, to burn.
(American Heritage® Dictionary of the English Language, Fourth Edition)

Examples

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