Here's what rhymes with subfemtomole.
mole knoll whole role soul coal goal hole pole roll sole bowl fol poll toll shoal dole foal bole boll thole vole kohl tole dolour stole parole enroll droll troll unroll oriole maypole prole skoal patrol scroll stroll cajole petiole bedroll condole pigeonhole beanpole rissole innersole control systole casserole extol vacuole buttonhole camisole cubbyhole extoll glycerol arteriole decontrol quadrupole profiterole