- Naturally occurring sediments that are produced by chemical actions resulting during the weathering of rocks. It is often the term applied to all earths that form a paste with water and harden when heated.
- Lighting devices having a vessel to contain fuel used as a source of illumination, such as grease or oil. The term also refers to relatively small -- of a size to be placed on or beside a desk or table -- household or office lighting devices that incorporate a vessel of glass or some similar material that encloses the source of illumination, whether a candle, oil, gas-jet, or incandescent wire inside a light bulb. The lamp was invented at least as early as 70,000 BCE, originally consisting of a hollowed-out rock filled with moss or some other absorbent material that was soaked with animal fat and ignited. To refer to the glass bulbs used as a component of electric lamps, use "light bulbs."
- Refers generally to the culture and styles that developed in antiquity in the Levant, which is the Near Eastern area along the eastern coasts of the Mediterranean, corresponding primarily to modern Syria, Lebanon, Jordan, and Israel.
- Any greasy substance that is liquid at room temperature and insoluble in water. Fixed (nonvolatile) oils have the same chemical composition as fats: they consist chiefly of glycerides, resulting from a reaction between glycerol and fatty acids. Oils may be divided by function and type: mineral (e.g., paraffin), vegetable (e.g., linseed), animal (e.g., fish), essential (e.g., turpentine), or edible (e.g., olive).
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