# uredinium

> English word · Noun

## Definitions
1. A pustule that occurs on the leaves and stems of a plant infected with rust fungus.

## Etymology
From Latin uredo (stem uredin-) + -ium.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/uredinium