sabayonEnglishOxford New American Dictionarysabayon /ˌsäbīˈôn, ˌsɑbaɪˈɔn / ▸ noun French term for zabaglione: [mass noun] quince compote with sabayon [as modifier] sabayon sauce [count noun] he once poured a bottle of very fine Champagne into a sabayon.