jejunum

American  

[ji-joo-nuhm] / dʒɪˈdʒu nəm /

noun

Anatomy.

1. the middle portion of the small intestine, between the duodenum and the ileum.

---

jejunum British  

/ dʒɪˈdʒuːnəm /

noun

1. the part of the small intestine between the duodenum and the ileum

---

jejunum Scientific  

/ jə-jo̅o̅′nəm /

plural

jejuna

1. The middle part of the small intestine, connecting the duodenum and the ileum.

---

Other Word Forms

• jejunal adjective

Etymology

Origin of jejunum

1350–1400; Middle English < Latin jējūnum, noun use of neuter of jējūnus empty, poor, mean; so called because thought to be empty after death

Compare meaning

How does jejunum compare to similar and commonly confused words? Explore the most common comparisons:

• jejunum vs. ileum

Example Sentences

The human small intestine is over 6m long and is divided into three parts: the duodenum, the jejunum, and the ileum.

From Textbooks • Jun. 9, 2022

The bulk of chemical digestion and nutrient absorption occurs in the jejunum.

From Textbooks • Jun. 9, 2022

The hormone-rich organ, connecting the stomach to another part of the intestine called the jejunum, has prompted the development of various procedures to bypass or intervene on the duodenum.

From The Wall Street Journal • Nov. 2, 2015

In gastric bypass, a surgeon reroutes the digestive system so that the stomach empties directly into the middle of the small intestine, bypassing a section called the duodenum and jejunum.

From Reuters • May 7, 2013

The seat of colic is occasionally the duodenum, but oftener the ileum or the jejunum; sometimes, however, both the c�cum and colon are affected.

From Domestic Animals History and description of the horse, mule, cattle, sheep, swine, poultry and farm dogs; with directions for their management, breeding, crossing, rearing, feeding, and preparation for a profitable market; also their diseases and remedies. Together with full directions for the management of the dairy. by Allen, Richard L.