This brochure is for Department of Defense civilian employees who move between the appropriated and nonappropriated fund employment programs. This information will assist in selection of benefits as transition is made from one system to the other. Headquarters Department of Army.
(noun) The cloaca is the single posterior opening for a bird's digestive, urinary and reproductive tracts and is used to expel feces and lay eggs. The cloaca is found on the rear of the body under the base of the tail, covered by feathers on the extreme lower abdomen.
Medical Definition of Cloaca Cloaca: A common passageway for feces, urine and reproduction. At one point in the development of the human embryo, there is a cloaca. It is the far end of a structure called the hindgut. This structure then divides to form a rectum, a bladder, and genitalia. The presence of a cloaca is normal in many adult animals (birds, reptiles, amphibians, some fish, and even a few mammals). However, the persistence of a persistent cloaca in a person is a birth defect (a congenital malformation). Cloaca is the Latin word for drain or sewer.