The congenital absence of the muscles of the wall of the abdomen, resulting in a wrinkled appearance of the belly; an abdomen exhibiting this; (more fully "prune belly syndrome") a syndrome characterized by this and other malformations, especially of the urogenital tract, seen chiefly in boys.
Origin
1960s.
Definition of prune belly in US English:
prune belly
noun
Medicine
The congenital absence of the muscles of the wall of the abdomen, resulting in a wrinkled appearance of the belly; an abdomen exhibiting this; (more fully "prune belly syndrome") a syndrome characterized by this and other malformations, especially of the urogenital tract, seen chiefly in boys.