(n) :
(phytopathology) A disease or deformity in a woody plant, typically a tree, such that the natural structure of the plant is changed so that a dense mass of shoots grows from a single point.
(n) :
(phytopathology) A disease or deformity in a woody plant, typically a tree, such that the natural structure of the plant is changed so that a dense mass of shoots grows from a single point.