| Slovak | English |
| dnový olej | bilge oil Waste oil that accumulates, usually in small quantities, inside the lower spaces of a ship, just inside the shell plating, and usually mixed with larger quantities of water |
| domáci vykurovací olej | domestic fuel oil Liquid petroleum product used in domestic heaters |
| minerálny olej | mineral oil Oil which derives from petroleum and is made up of hydrocarbons |
| odpadový olej | waste oil Oil arising as a waste product of the use of oils in a wide range of industrial and commercial activities, such as engineering, power generation and vehicle maintenance and should be properly disposed of, or treated in order to be reused |
| rastlinný olej | vegetable oil An edible, mixed glyceride oil derived from plants (fruit, leaves, and seeds), including cottonseed, linseed, tung, and peanut; used in food oils, shortenings, soaps, and medicine, and as a paint drying oil |
| vykurovací olej | fuel oil A liquid product burned to generate heat, exclusive of oils with a flash point below 38°C; includes heating oils, stove oils, furnace oils, bunker fuel oils |
