duodenum
noun
du·o·de·num
ˌdü-ə-ˈdē-nəm
du̇-ˈä-də-nəm
also (ˌ)dyü-
plural duodena
ˌdü-ə-ˈdē-nə
du̇-ˈä-də-nə
or duodenums
: the first part of the small intestine extending from the pylorus to the jejunum
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Merriam-Webster unabridged
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