Here's what rhymes with panarium.
                        
                        
                    
                                barium  honorarium  aquarium  vivarium  sanitarium  planetarium  Words that almost rhyme with panarium
carrion  chameleon  agrarian  ovarian  barbarian  clarion  nobelium  libertarian  vegetarian  veterinarian  centenarian  seminarian  vulgarian  librarian  proletarian  sectarian  antiquarian  trinitarian  octogenarian  sanitarian  nonagenarian  cnidarian  authoritarian  utilitarian  egalitarian  nonsectarian  totalitarian  communitarian  disciplinarian  parliamentarian  latitudinarian  septuagenarian  valetudinarian  sexagenarian  humanitarian  fermium  millennium  gentium  requiem  technetium  biennium  compendium  endometrium  proscenium  lutetium  lawrencium  quadrennium