Here's what rhymes with cellerarium.
barium aquarium honorarium vivarium sanitarium planetarium Words that almost rhyme with cellerarium
carrion agrarian ovarian sectarian vegetarian veterinarian clarion seminarian vulgarian authoritarian librarian barbarian libertarian chameleon centenarian nobelium utilitarian egalitarian proletarian sanitarian cnidarian antiquarian trinitarian nonsectarian sexagenarian humanitarian totalitarian communitarian disciplinarian octogenarian septuagenarian valetudinarian nonagenarian parliamentarian latitudinarian fermium millennium gentium requiem biennium lutetium proscenium technetium lawrencium compendium endometrium quadrennium