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