1. (

• canker ,

) a fungal disease of woody plants that causes localized damage to the bark ;

2. (

• canker ,
• canker_sore

) an ulceration (especially of the lips or lining of the mouth) ;

3. (

• pestilence ,
• canker

) 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" ;

1. (

• canker ,

) become infected with a canker ;

2. (

• canker

) infect with a canker ;