canker

n. 潰瘍、腐蝕因素

vi. 患潰瘍、腐蝕、潰爛

vt. 使患潰瘍、使腐蝕

學術名詞

• 癌腫病：林學、植物學
• 口潰瘍：醫學
• 口癌：獸醫學
• 口壞疽馬蹄癌：獸醫學
• 潰瘍病：植物學

英文釋義

1. a fungal disease of woody plants that causes localized damage to the bark
2. an ulceration (especially of the lips or lining of the mouth)
3. a pernicious and malign influence that is hard to get rid of
4. become infected with a canker