blister rust
noun Plant Pathology.
a disease, especially of white pines, characterized by cankers and in the spring by blisters on the stems, caused by a rust fungus of the genus Cronartium.
Origin of blister rust
First recorded in 1915–20
Words nearby blister rust
blister,
blister beetle,
blister copper,
blister gas,
blister pack,
blister rust,
blister steel,
blistering,
blistery,
blit,
blite
British Dictionary definitions for blister rust
blister rust
noun
a disease of certain pines caused by rust fungi of the genus Cronartium, causing swellings on the bark from which orange masses of spores are released