noun · a flexible fiber-optic medical instrument used for examining the interior of the colon

医生使用结肠镜来检查肠道〒

noun · a medical procedure involving the examination of the colon, often used as an abbreviation for 结肠镜检查 jié​cháng​jìng​jiǎn​chá

他明天要去医院做结肠镜〒