Here's what rhymes with ratiocinandum.
condom Words that almost rhyme with ratiocinandum
quantum wanton wampum bonbon boredom bonum bottom column solemn forum mortem balsam dorsum sorghum nostrum possum stardom thraldom foursome thralldom carom problem blossom quorum drachm rostrum flotsam metronome opossum slalom cockscomb gastronome decorum sugarplum falciparum microcosm postpartum macrocosm