Words That Rhyme With "Principium" :

3 syllables:

Gibeon, idiom, Libyan, opium, tritium

4 syllables:

amphibian, bothridium, clostridium, conidium, ctenidium, cymbidium, cystidium, ectropium, ephippium, europium, glochidium, gonidium, iridium, Namibian, nephridium, oidium, Olympian, Philippian, pycnidium, pygidium, Pyridium, rubidium, triphibian

5 syllables:

antheridium, eponychium, favellidium, hesperidium, ommatidium, Telescopium

6 syllables:

cryptosporidium, endoperidium, exoperidium, hologonidium, perionychium