n. 1. the *abdomen or abdominal cavity. 2. the central fleshy portion of a muscle.
(Eagle–Barrett syndrome) a hereditary condition, occurring exclusively in males, characterized by a deficiency of abdominal muscles, complex malformation of the urinary tract, and bilateral undescended testes. The lungs may be underdeveloped. The name derives from the typically wrinkled appearance of the skin over the abdomen.... prune belly syndrome