Words That Rhyme With "Illinium" :
3 syllables:
conium, cranium, Indian, indium, inion, minium, rhenium, Simeon, simian
4 syllables:
Abyssinian, actinian, actinium, ammonium, Arminian, biennium, bucranium, calcaneum, Corinthian, Darwinian, decennium, delphinium, didinium, didymium, dominium, einsteinium, Endymion, euphonium, geranium, germanium, harmonium, hominian, hydronium, hymenium, Iconium, ionium, Justinian, meconium, Mordvinian, neptunium, phosphonium, plutonium, proscenium, prosimian, prytaneum, quadrennium, quinquennium, ruthenium, salpingian, Sardinian, septennium, Socinian, stramonium, sulfonium, sulphonium, syconium, titanium, triclinium, triennium, uranium, virginium, zirconium
5 syllables:
Amerindian, androconium, archegonium, Argentinian, ascogonium, Augustinian, Carlovingian, carpogonium, Carthaginian, catarrhinian, chondrocranium, condominium, cuprammonium, diazonium, endocranium, hirudinean, hydroxonium, labyrinthian, Merovingian, neodymium, oogonium, Palestinian, pandemonium, parascenium, pelargonium, pericranium, perigonium, peritoneum, platyrrhinian, positronium, protactinium, sporogonium, succedaneum, suppedaneum, uredinium, Valentinian
6 syllables:
ferrotitanium, ferrozirconium, hexamethonium, praseodymium, protoactinium, spermatogonium