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BNC: 30619 COCA: 37885

duodenum

noun
/ˌdjuːəˈdiːnəm/
/ˌduːəˈdiːnəm/
(plural duodenums, duodena
/ˌdjuːəˈdiːnə/
/ˌduːəˈdiːnə/
)
(anatomy解剖学)
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  1. the first part of the small intestine, next to the stomach十二指肠
    compare ileum, jejunumTopics Bodyc2
    Word Originlate Middle English: from medieval Latin, from duodeni ‘in twelves’, its length being equivalent to the breadth of approximately twelve fingers.

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