n. The central of the three divisions of the small intestine which lies between the duodenum and the ileum.
the GNU version of the Collaborative International Dictionary of English
n. The middle division of the small intestine, between the duodenum and ileum; -- so called because usually found empty after death.
The Century Dictionary and Cyclopedia
n. In anatomy, the second division of the small intestine, of uncertain extent, intervening between the duodenum and the ileum; more fully, the intestinum jejunum: so named because it was supposed to be empty after death. See intestine.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. the part of the small intestine between the duodenum and the ileum
Word Usage
"And thus it is that, in all such animals as we are now considering, there is found what is called the jejunum; which is a part of the small gut, of the gut, that is, which comes next to the stomach."