Words That Rhyme With "Perionychium" :
3 syllables:
brachium, idiom, ischium, tritium
4 syllables:
amphictyon, ascidium, basidium, bothridium, clostridium, cymbidium, cystidium, ephippium, glochidium, iridium, isidium, nephridium, oidium, Philippian, presidium, principium, pygidium, Pyridium, pyxidium, rubidium, saurischian, syncytium
5 syllables:
antheridium, eponychium, favellidium, hesperidium, miracidium, Mississippian, ommatidium, ornithischian