Crematorium rhymes with:
auditorium, moratorium, auditorium, moratorium, auditorium, emporium, moratorium, aquarium, atrium, auditorium, bacterium, barium, delirium, deuterium, disequilibrium, emporium, equilibrium, herbarium, honorarium, merriam, miriam, moratorium, myriam, mysterium, opprobrium, planetarium, tellurium, thorium, yttrium