Words That Rhyme With "Ommatidium" :

3 syllables:

didion, Gibeon, Gideon, idiom, Indian, indium, Libyan, Lydian, medium, Midian, odium, podium, radium, rhodium, sodium, tritium

4 syllables:

aecidium, alodium, amphibian, anthodium, ascidian, ascidium, basidium, bothridium, caladium, clostridium, conidium, ctenidium, cymbidium, cystidium, Dravidian, ephippium, erodium, euclidean, Floridian, glochidium, gonidium, iridium, isidium, mazaedium, meridian, Namibian, nephridium, obsidian, oidium, ophidian, Ovidian, palladium, plasmodium, presidium, principium, pycnidium, pygidium, Pyridium, pyxidium, rubidium, soredium, sympodium, syncytium, taenidium, triphibian, uredium, vanadium, viridian

5 syllables:

Amerindian, antheridium, cephalodium, clitoridean, cypripedium, enchiridion, eponychium, favellidium, gonopodium, hesperidium, hyphopodium, intermedium, lycopodium, miracidium, monopodium, monosodium, nullifidian, parapodium, phyllocladium, postmeridian, proboscidean, pseudopodium, pyramidion, solifidian, staminodium, stylopodium

6 syllables:

antemeridian, cryptosporidium, endoperidium, exoperidium, ferrovanadium, hologonidium, mycocecidium, perionychium