A necrotic, fungal disease of apple and other trees that results in damage to the bark
this plant is susceptible to canker
Any of various diseases associated with ulceration of the mouth and throat; especially scarlet fever.
The dog rose.
Any of various cankers affecting apple trees, especially that caused by the ascomycete fungus Nectria galligena.
(Now English regional) the fruit of the dog rose.
The blossom of the dog rose.
A disease of citrus trees and shrubs caused by the bacterium Xanthomonas axonopodis, marked by lesions on, and premature shedding of, leaves and fruit.
A small ulcer of the mouth or lips
Inflammation of the ear of a dog, cat, or rabbit, typically caused by a mite infestation