| blue baby | |
| —n | |
| a baby born with a bluish tinge to the skin because of lack of oxygen in the blood, esp caused by a congenital defect of the heart | |
| the offspring of a zebra and a donkey. |
| a fool or simpleton; ninny. |
blue baby n.
An infant born with cyanosis as a result of a congenital cardiac or pulmonary defect that causes incomplete oxygenation of the blood.