Here's what rhymes with sphcnoid.
void annoyed choroid sigmoid glenoid sphenoid toyed joyed cloyed avoid enjoyed steroid solenoid arachnoid ethmoid convoyed hemorrhoid haemorrhoid employed devoid amyloid overjoyed asteroid adenoid cuboid decoyed destroyed deployed paranoid rheumatoid alkaloid carcinoid celluloid humanoid unemployed subarachnoid anthropoid mongoloid reemployed schadenfreude redeployed underemployed Words that almost rhyme with sphcnoid
deutsche soit quoit droit avoit adroit introit maladroit oiled noised moiled joined boiled coined coiled poised soiled foiled toiled roiled spoiled enjoined conjoined adjoined broiled uncoiled rejoined embroiled recoiled subjoined unspoiled purloined despoiled reconnoitred charbroiled