Odiaum rhymes with:
plasmodium, podium, rhodium, sodium, chriptosporidium, compendium, cryptosporidium, idiom, indium, iridium, medium, myocardium, nephridium, palladium, plasmodium, podium, presidium, radium, rhodium, sodium, stadium, tedium, vanadium
Odiaum sounds like:
o'donohue, oatman, odden, odem, oden, odeon, odiaun, odin, odom, odonohue, odum, ooten, otani, othman, otten, ottman, ottoman, ottum, outdone, outen, outman, outten