Here's what rhymes with significandum.
random tandem memorandum nonrandom Words that almost rhyme with significandum
phantom canton tantum bantam abandon dampen plantain zooplankton phytoplankton handsome chasm madam ransom madame hansom maxim datum fathom magnum tantrum macadam sachem transom gladsome talcum pablum platinum stratum amalgam spasm plasm sphagnum sanctum phantasm enthusiasm neoplasm tarmacadam cytoplasm substratum iconoclasm protoplasm