oleo-, ole-, -oleic, ol-

(Greek > Latin: [olive] oil; fat)

oleosity (s) (noun) (no pl)
The quality of being oily; oiliness: In the story Mandy was reading, there was no way that the robber could steal the gold coins because the fairies had them dipped in oil and this oleosity made the gold so slippery that they always fell out of his fingers when he tried to gather them up.
oleosus (adjective), more oleosus, most oleosus
Greasy; relating to an abnormality of the sebaceous aparatus: Mary's doctor told her that her hair became greasy in such a short time due to the oleosus condition resulting from the secretion of the sebaceous glands.
oleotherapy (s) (noun), oleotherapies (pl)
The treatment of an illness with an oil given internally or applied externally: The obsolete term oleopherapy can be a medication to treat various conditions. But the term is not used in the conventional and accepted medical language or parlance.
oleothorax (s) (noun) (no pl)
A therapeutic injection of an oil into the pleural cavity: Very long ago, oleothorax was used to cure pulmonary tuberculosis.
oleovitamin (s) (noun), oleovitamins (pl)
A solution of a vitamin in oil: Lynn had to take her oleovitamins every morning which contained fish oil.
oleum (s) (noun), oleums; olea (pl)
A solution of sulfur trioxide in sulfuric acid: Oleum is a colourless liquid which fumes in moist air.
olivary (adjective), more olivary, most olivary
Formed like or relating to an olive: During some research on patients, a connection was found between the cerebellum and the olivary nucleus.

Jane thought she saw some big olives on the plate, but they just had olivary shapes and didn't even have an olivary taste.

olive (s) (noun), olives (pl)
1. An evergreen tree of the Mediterranean; Olea europaea of the family Oleaceae: The olive tree is short and squat, has silvery green leaves which have an oblong form, and the trunk of the olive tree is gnarled and twisted.
2. The fruit of the olive tree: Olives yield oil, a fixed oil that consists chiefly of olein and palmitin.

The olives from the tree are used as a nutritive food. In medicine they are used as a laxative, as an emolient external application to wounds or burns, and as an ingredient of liniments and ointments.
3. An ovoid device small enough to fit on the tip of a vein stripper: An olive prevents damaging the vein as the stripper is pushed into it.

petrol (s) (noun), petrols (pl)
1. A British term for gasoline, or gas, for motor-driven vehicles: On their holiday in England Jerry and Janice stopped at a fuel station to fill their rented car with petrol.
2. Any of numerous organic compounds, such as benzene and methane, that contain carbon and hydrogen as well as octane, heptane, hexane, etc., which are extracted from petroleum and primarily used as a fuel in internal-combustion engines: Petrol is known to contain such ingredients as corrosion inhibitors and antiknock compounds and lighter hydrocarbons from gasoline that can be used in dirigible balloons.
3. Etymology: "gasoline" from French pétrol (1892); earlier used (1585) in reference to the unrefined substance, from Middle French petrole, "petroleum"; from Old French; from Modern Latin petroleum.
petrolatum (s) (noun), petrolatums (pl)
A translucent, oily, semisolid, amorphous, yellowish or whitish mass obtained from petroleum: Petrolatum is used as a lubricant, as a rust preventive, and in cosmetics and medicine as a protective dressing, emollient, or an ointment.
petroleous (adjective), more petroleous, most petroleous
Relating to something that is abounding in or containing a slippery or viscous liquid or liquefiable substance that cannot be mixed with water: Sam was astounded when he found out that he actually had petroleous resources on his property, and so it was possible to obtain a lot of oil, and that was why he contacted the local refinery to see when it could start the process of collecting it.
petroleum (s) (noun), petroleums (pl)
A naturally occurring liquid mixture of complex hydrocarbon compounds that yields combustible fuels, petrochemicals, and lubricants upon distillation: Petroleum is usually found in deposits beneath the earth's surface and thought to have originated from plant and animal remains of the geologic past.

Petroleum is by far the most widely used fuel source in the industrialized world and it is also used in many industrial products, such as plastics, synthetic fibers, and drugs.

seborrhea oleosa (s) (noun) (no pl)
A form of seborrhea characterized by an excessive oiliness of the skin, especially in the area of the forehead and the nose: Seborrhea oleos is a disease distinguished by an undue amount of secretion of sebum or a change in its quality causing crusts, scales on the skin, or an oily coating on the skin.

Related fat-word units: adipo-; lard; lipo-; obeso-; omento-; pimelo-; pio-; sebo-; steato-.