Pronunciation: (oil),[key] —n. 1. any of a large class of substances typically unctuous, viscous, combustible, liquid at ordinary temperatures, and soluble in ether or alcohol but not in water: used for anointing, perfuming, lubricating, illuminating, heating, etc.
2. a substance of this or similar consistency.
3. refined or crude petroleum.
4. Painting. a. See oil color. b. See oil painting. 5. Informal.unctuous hypocrisy; flattery.
6. an oilskin garment.
7. Australian and New Zealand Slang.facts or news; information: good oil. 8. pour oil on troubled waters, to attempt to calm a difficult or tense situation, as an argument.
9. strike oil, a. to discover oil, esp. to bring in a well.
b. to have good luck, esp. financially; make an important and valuable discovery: They struck oil only after years of market research.
—v.t. 1. to smear, lubricate, or supply with oil.
2. to bribe.
3. to make unctuous or smooth: to oil his words. 4. to convert into oil by melting, as butter.
—adj. 1. pertaining to or resembling oil.
2. using oil, esp. as a fuel: an oil furnace. 3. concerned with the production or use of oil: an offshore oil rig. 4. made with oil.
5. obtained from oil.