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| a chattering or flighty, light-headed person. |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| open-heart surgery | |
| —n | |
| surgical repair of the heart during which the blood circulation is often maintained mechanically | |
| open-heart surgery
Surgery in which the thoracic cavity is opened to expose the heart and the blood is recirculated and oxygenated by a heart-lung machine. |