[sim-plee-kuh-nek-tid] 
| 1. | (of a set or domain) having a connected complement. |
| 2. | (of a set or domain) having the property that every simple closed curve in the set can be shrunk to a point without intersecting the boundary of the set. |
| simply connected adj. Of, being, or characterized by the property of a surface or other space such that any closed curve within it can be continuously shrunk to a point without leaving the space. |