boards (flat objects)
- Thin, flat, rigid objects, of considerable length or breadth compared to thickness, most often of wood, paperboard, or composite fiber materials.
oil (substance)
- General term for a wide variety of viscous liquids (or easily liquefiable on warming) that are both combustible and immiscible in water. The character of oils may be mineral (e.g., paraffin), vegetable (e.g., linseed), animal (e.g., fish), essential (e.g., turpentine), or edible (e.g., olive).
oil painting (technique)
- The art or practice of producing creative works in oil paint, which is pigment suspended in vegetal drying oils. It dates from at least the Middle Ages in Europe, and was widely adopted for easel painting by the fifteenth century.
paintings (visual works)
- Unique works in which images are formed primarily by the direct application of pigments suspended in oil, water, egg yolk, molten wax, or other liquid, arranged in masses of color, onto a generally two-dimensional surface.
wood (plant material)
- The principal tissue of trees and other plants that provides both strength and a means of conducting nutrients. Wood is one of the most versatile materials known.
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