详细解释:n. 溃疡, 腐蚀因素
vi. 患溃疡, 腐蚀, 溃烂
vt. 使患溃疡, 使腐蚀
【医】 [坏疽性]溃疡
词型变化：
动词过去式:cankered过去分词:cankered现在分词:cankering第三人称单数:cankers英语解释：
名词 canker:
a fungal disease of woody plants that causes localized damage to the barkan ulceration (especially of the lips or lining of the mouth)同义词：canker sore