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jejunum

noun
🔊/dʒɪˈdʒuːnəm/
🔊/dʒɪˈdʒuːnəm/
(anatomy解剖学)
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  1. the second part of the small intestine空肠 compare duodenum, ileum
    Word Originmid 16th cent.: from medieval Latin, neuter of jejunus ‘fasting’ (because it is usually found to be empty after death).