Words That Rhyme With "Monochasium" :
3 syllables:
avian, Gratian, Latium, Magian, Schlesien, Shavian
4 syllables:
cetaceum, cymatium, dichasium, gymnasium, Moldavian, Moravian, Octavian, pancratium, patagium, solatium, spermatium, subclavian, Vespasian