The Collaborative International Dictionary
                    Omnigraph
                    
                        
                
                                                                    Omnigraph \Om"ni*graph\, n. [Omni- + -graph.] A pantograph. [R.]
Wiktionary
                    omnigraph
                    
                        
                
                                                                    n. A pantograph.
Usage examples of "omnigraph".
His plays, if I may be pardoned for coining a word, need not an omnigraph, but monographs.