Ethylene rhymes with:
polyethylene, naphthalene, polyethylene, acetylene, aniline, evaleen, gasoline, magdalene, maybelline, mescaline, naphthalene, opaline, polyacetylene, polybutylene, polyethylene, polypropylene, tourmaline, valvoline, vaseline
Ethylene sounds like:
eddleman, eddlemon, edelen, edeline, edelman, edelmann, edleman, edlin, edlyn, etheline, ethelyn