n.
Pronunciation: ˌ dü- ə - ' d ē -n ə m, du ̇ - ' ä-d ə -n ə m also ( ˌ )dyü-
Function: noun
Inflected Form: plural -de · na \ - ' d ē -n ə , -d ə -n ə \ or -denums
Etymology: Middle English, from Medieval Latin, from Latin duodeni twelve each, from duodecim twelve; from its length, about 12 fingers' breadth
Date: 14th century
: the first part of the small intestine extending from the pylorus to the jejunum
– du · o · de · nal \ - ' d ē -n ə l, -d ə -n ə l \ adjective