Wiktionary
                    semi-column
                    
                        
                
                                                                    n. A half column.
Usage examples of "semi-column".
Semi-columns of fake marble formed little loggias that led away to the private alcoves and dining rooms, while the divided central stairway was a bad film set of Versailles, an aerial riot of dusty cupids and candelabra, the grimy brass overlayed with mould and verdigris.