| 单词 | duodenum | 
| 释义 | du·o·de·num    (d′ə-dēnəm, dy′-, d-ŏdn-əm, dy-)n. pl.   du·o·de·na (d′ə-dēnə, dy′-, d-ŏdn-ə, dy-) or   du·o·de·nums   The beginning portion of the small intestine, starting at the lower end of the stomach and extending to the jejunum. [Middle English, from Medieval Latin, short for intestīnum duodēnum digitōrum, intestine of twelve finger-widths (in length), from Latin duodēnum, genitive pl. of duodēnī, twelve each, from duodecim, twelve; see  DUODECIMAL.] du′o·denal (d′ə-dēnəl, dy′-, d-ŏdn-əl, dy-) adj.  | 
	
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