1.Definition: a fungal disease of woody plants that causes localized damage to the bark

Category: General

2.Definition: a pernicious and malign influence that is hard to get rid of

"Racism is a pestilence at the heart of the nation", "According to him, I was the canker in their midst"

Related Noun(s):pestilence

Category: General

3.Definition: an ulceration (especially of the lips or lining of the mouth)

Category: General