noun🔗Share十二指肠 The first part of the small intestine, starting at the lower end of the stomach and extending to the jejunum."The doctor examined the patient's duodenum to see if any ulcers were present in the first part of the small intestine. "医生检查了病人的十二指肠，看看小肠的起始部分是否有溃疡。anatomyorganbodymedicinephysiologypartChat with AIVocabulary GamePractice Reading
