Here's what rhymes with sigmoidoscope.
scope cope hope rope slope pope soap dope grope lope mope nope telescope syncope trope elope gyroscope periscope microscope isotope horoscope kaleidoscope stethoscope endoscope radarscope towrope envelope antelope oscilloscope stereoscope cantaloupe misanthrope arthroscope electroscope fluoroscope stroboscope spectroscope radioisotope heliotrope Words that almost rhyme with sigmoidoscope
code coat coach goat cote goad note wrote mode road showed boat load vote node rode throat float flowed globe lobe quote robe slowed afloat glowed moat rowed rote sewed smote stowed toad towed groat lode lowed mote mowed roach snowed toed bode corrode crowed doge dote gloat tote hoed loge poach woad stoat busload shoat shoed yob approach bestowed probe abode overcoat strode encode erode unload broach connote decode commode highroad strobe bloat earlobe topcoat disrobe haloed offload unbowed emote garrote kowtowed postcode soloed unquote buffaloed promote remote episode denote devote overload waistcoat encroach overflowed petticoat inchoate greatcoat overrode reload rewrote bestrode motorboat anaerobe demote forebode lassoed outvote undercoat misquote plateaued powerboat discommode sugarcoat anecdote reproach explode creosote nematode radioed ferryboat riverboat underwrote armload implode incommode mustachioed moustachioed antidote trematode