Vanadium rhymes with:
palladium, radium, stadium, chriptosporidium, compendium, cryptosporidium, idiom, indium, iridium, medium, myocardium, nephridium, odiaum, palladium, plasmodium, podium, presidium, radium, rhodium, sodium, stadium, tedium
Vanadium sounds like:
vandam, vandamme, vandeman, vanden, vandine, vanduyn, vanduyne, vandyne, vaneaton, vanetten, vanhouten, vantine, vendome, venetian, vinton