Words That Rhyme With "Cleistothecium" :

3 syllables:

aecium, Latium

4 syllables:

androecium, cetaceum, cymatium, gynoecium, hospitium, indicium, lutecium, lutetium, pancratium, podetium, promethium, silicium, solatium, spermatium, technetium

5 syllables:

americium, amphithecium, apothecium, endothecium, epithecium, hypothecium, nemathecium, paramecium, perithecium