noun
: any of several diseases of pines caused by rust fungi (genus Cronartium ) in the aecial stage, affecting the sapwood and inner bark and producing blisters externally ; often : white-pine blister rust
noun
: any of several diseases of pines caused by rust fungi (genus Cronartium ) in the aecial stage, affecting the sapwood and inner bark and producing blisters externally ; often : white-pine blister rust
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012