cankers >> /ˈkaŋkə/
Definition: [verb] (of a plant or part of a plant) become infected with canker.
Example: the tree is apt to canker in poor soils
Definition: [noun] A destructive fungal disease of apple and other trees that results in damage to the bark.
Example: cut out lesions on branches caused by canker
Definition: [noun] An ulcerous condition or disease of a human or animal.
Definition: [noun] A malign and corrupting influence that is difficult to eradicate.
Example: racism remains a canker at the heart of the nation