Words That Rhyme With "Helenium" :
3 syllables:
conium, cranium, minium, Nemean, premium, rhenium
4 syllables:
actinium, ammonium, anthemion, Armenian, Asplenium, Athenian, biennium, Bohemian, bucranium, calcaneum, coremium, decennium, delphinium, didinium, dominium, einsteinium, euphonium, gelsemium, geranium, germanium, harmonium, hydronium, hymenium, Ibsenian, Iconium, ionium, meconium, mycenaen, neptunium, phosphonium, plutonium, proscenium, prytaneum, quadrennium, quinquennium, Ruthenian, ruthenium, selenium, septennium, sirenian, Slovenian, stramonium, sulfonium, sulphonium, syconium, titanium, triennium, Turkmenian, Tyrrhenian, uranium, virginium, zirconium
5 syllables:
androconium, archegonium, ascogonium, Beethovenian, carpogonium, chondrocranium, condominium, cuprammonium, diazonium, endocranium, gynostemium, hydroxonium, oogonium, pandemonium, parascenium, pelargonium, pericranium, perigonium, peritoneum, positronium, protactinium, sporogonium, succedaneum, superpremium, suppedaneum, uredinium
6 syllables:
ferrotitanium, ferrozirconium, hexamethonium, protoactinium, spermatogonium