Here's what rhymes with exprimendum.
referendum Words that almost rhyme with exprimendum
tendon momentum dentin intention hempen indention distention inattention intervention contravention abstention circumvention subvention supervention nonintervention seldom venom denim phenom welcome harem addendum plenum vellum bedlam velum jetsam webcam envenom rectum septum unwelcome spectrum cerebellum flagellum plectrum bubblegum antebellum antiserum interregnum