Wordnet 3.0
NOUN (1)
1.
the part of the small intestine between the stomach and the jejunum;
The Collaborative International Dictionary of English v.0.48:
Duodenum \Du`o*de"num\, n. [NL., fr. duodeni twelve each: cf. F.
duodenum. So called because its length is about twelve
fingers' breadth.] (Anat.)
The part of the small intestines between the stomach and the
jejunum. See Illust. of Digestive apparatus, under
Digestive.
[1913 Webster]
WordNet (r) 3.0 (2006):
duodenum
n 1: the part of the small intestine between the stomach and the
jejunum
Moby Thesaurus II by Grady Ward, 1.0:
43 Moby Thesaurus words for "duodenum":
abdomen, anus, appendix, blind gut, bowels, brain, cecum, colon,
endocardium, entrails, foregut, giblets, gizzard, guts, heart,
hindgut, innards, inner mechanism, insides, internals, intestine,
inwards, jejunum, kidney, kishkes, large intestine, liver,
liver and lights, lung, midgut, perineum, pump, pylorus, rectum,
small intestine, spleen, stomach, ticker, tripes,
vermiform appendix, viscera, vitals, works