Here's what rhymes with adatom.
erratum Words that almost rhyme with adatom
button piton mutton dudgeon unbutton dubbin sudden bludgeon glutton nubbin androgen exciton globin scutcheon escutcheon bellybutton custom accustom buxom caecum buncombe bunkum dumdum cementum jejunum humdrum colostrum corundum secundum conundrum carborundum