Here's what rhymes with periastron.
Words that almost rhyme with periastron
reaction captain barren baron fasten satin bastion canton saffron fatten latin batten capstan gasman fashion happen passion hadn cabin cannon canon faction famine sanction wagon chaplain gallon mansion ration salmon assassin canyon caption falcon haben dampen flatten hangman jasmine lation madmen plantain tation taxon waxen banyan chanson mammon platen batsman sadden talon gammon madden damson badman badmen raglan taxman refasten taxmen imagine abandon fraction dragon traction inaction retraction plankton prolactin stallion blacken bracken redaction slacken adaption clansmen flagon flaxen gladden handgun diapason landsman refashion scansion unfasten clansman scallion klaxon trashcan bandsman flashgun sandmen interaction attraction grandson battalion diffraction refraction craftsman draftsman draughtsman exaction impaction medallion rarefaction reexamine zooplankton benefaction detraction draftsmen dispassion overreaction gravamen petrifaction triathlon pentathlon upperclassman gyrfalcon expansion companion transaction abstraction compassion distraction compaction phytoplankton infraction stupefaction protraction rapscallion underclassman malefaction vitrifaction satisfaction contraction extraction subtraction liquefaction putrefaction contraption counteraction dissatisfaction