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