The Collaborative International Dictionary
                    Trajecting
                    
                        
                
                                                                    Traject \Tra*ject"\, v. t. [imp. & p. p.  Trajected; p. pr. &
   vb. n.  Trajecting.] [L. trajectus, p. p. of trajicere to
   throw across; trans across + jacere to throw. See  Jet a
   shooting forth.]
   To throw or cast through, over, or across; as, to traject the
   sun's light through three or more cross prisms. [R.] 
--Sir I.
   Newton.
Wiktionary
                    trajecting
                    
                        
                
                                                                    vb. (present participle of traject English)
Usage examples of "trajecting".
So the Waterhouses squirted past on the far side of the street, looking back to see whether any of those fatal spheres were trajecting after them.