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| du·o·de·num [ d ə dnəm, doo ódd'nəm ] (plural du·o·de·na [ d ə dnə, doo ódd'nə ] or du·o·de·nums) |
noun |
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| Definition: |
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first section of small intestine: the first short section of the small intestine immediately beyond the stomach
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| [14th century. < medieval Latin intestinum duodenum digitorum "intestine twelve finger-breadths long" < Latin duodecim "twelve"] |
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 du·o·de·nal adjective |
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