Here's what rhymes with flavigenum.
                        
                        
                    
                                venom  denim  phenom  plenum  Words that almost rhyme with flavigenum
pennon  lemon  harem  vellum  velum  seldom  welcome  rectum  septum  cerebellum  addendum  bedlam  jetsam  webcam  momentum  referendum  flagellum  spectrum  unwelcome  antebellum  interregnum  plectrum  bubblegum  antiserum