An island, province, and city in South Korea. / An endangered language, sometimes considered a dialect of the Korean language, spoken on the island. / An ethnic group native to to the island.

A South American (Amazonian) erythrinid fish, Hoplerythrinus unitaeniatus (formerly sometimes Erythrinus unitaeniatus).

plural of jeju

An island and self-governing province in South Korea.

(zoology) A breed of dog that was resurrected from the brink of extinction in 1986, originating from the island of Jeju, South Korea.

plural of Jeju dog

(dated, now rare) Not nutritious. / (by extension, of a speech or an argument) Lacking matter; empty; devoid of substance. / Naive; simplistic.

(anatomy) The central of the three divisions of the small intestine which lies between the duodenum and the ileum

(medicine) The surgical creation of an opening into the jejunum to allow artificial feeding.

plural of jejunum