from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The section of the small intestine between the duodenum and the ileum.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The central of the three divisions of the small intestine which lies between the duodenum and the ileum.
from 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.
from 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.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the part of the small intestine between the duodenum and the ileum
Middle English, from Medieval Latin iēiūnum (intestīnum), fasting (intestine) (so called because in dissection it was always found empty), neuter of Latin iēiūnus.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin ieiunum, neuter of iēiūnus. (Wiktionary)