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