Here's what rhymes with plumosum.
callosum Words that almost rhyme with plumosum
motion notion bosun chosen emotion promotion woven lotion potion cozen frozen erosion corrosion commotion cloven demotion sloven rewoven devotion locomotion ibuprofen implosion refrozen interwoven oxytocin handwoven explosion modem poem wholesome loathsome lonesome totem locum solum hokum periosteum scrotum unwholesome jeroboam