Glycerol rhymes with:
casserole, casserole, coloroll, agricole, amcole, amphibole, anatole, bankroll, bedsole, blowhole, buttonhole, casserole, charcoal, coloroll, cubbyhole, dipole, ebersole, eversole, fishbowl, flagpole, foxhole, grathwohl, harpole, heatwole, interpol, keyhole, levamisole, lodgepole, loophole, manhole, metropol, monopole, mousehole, oriole, payroll, pigeonhole, pinhole, posthole, pothole, redpoll, seminole, sinkhole, stackpole, superbowl, tadpole, technitrol, vanderpoel, virazole, walpole, wampole