jejunum

noun Anatomy.

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

noun

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

n.

late 14c., from Latin ieiunum, neuter of ieiunus (see jejune). Translating Greek nestis (Galen). So called because it typically is found empty during dissections, perhaps because it would tend to drain in a body laid on its back.

n. pl. je•ju•na (-nə)

1. The section of the small intestine between the duodenum and the ileum.

Plural jejuna

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