oatmealEnglishOxford Dictionary of Englishoatmeal /ˈəʊtmiːl / ▸ noun [mass noun] 1 meal made from ground oats, used in porridge, oatcakes, or other food: medium Scottish oatmeal [as modifier] oatmeal porridge. ▪ North American English porridge made from oatmeal or rolled oats. 2 a greyish-fawn colour flecked with brown: [as modifier] an oatmeal jacket. – ORIGIN late Middle English: from oat and meal2.