| n. | 1. | (Anat.) The part of the small intestines between the stomach and the jejunum. See Illust. of Digestive apparatus, under Digestive. |
| Noun | 1. | duodenum - the part of the small intestine between the stomach and the jejunum |
The first part of the small intestine.
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