noun
1. any of several diseases of pines caused by rust fungi of the genus Cronartium and marked by destructive invasion of bark and sapwood and producing blisters externally
• Syn: ↑white-pine rust, ↑white pine blister rust
• Hypernyms: ↑rust
2. fungus causing white pine blister rust and having a complex life cycle requiring a plant of genus Ribes as alternate host
• Syn: ↑Cronartium ribicola
• Hypernyms: ↑rust, ↑rust fungus
• Member Holonyms: ↑Cronartium, ↑genus Cronartium
Useful english dictionary. 2012.