| Term | Definition |
|---|---|
| Laminated | Laminated – Composed of layers bonded together for strength, thickness, or decorative effect. |
| Lampwork | Lampwork – The technique of manipulating glass by heating it with a small flame. An open flame is advantageous in very detailed work. |
| Lancet | Lancet – A narrow window with a sharp, pointed arch, commonly associated with gothic revival architecture. |
| Leaded Glass | Leaded Glass – Glass containing a percentage of lead oxide, which increases its density and improves its ability to refract and disperse light. Leaded glass is used for ornaments and for decorative and luxury tableware. |
| Limited Edition | Limited Edition – Artworks produced in a deliberately limited quantity. All items in the edition are identical and each one is an original work of art. The limited size of the edition enhances the value of each piece. |
| Line | Line – An object or form whose actual or visual length greatly exceeds any actual width or depth it many have. |
| Linocut | Linocut – A relief print process similar to woodcut. Wood blocks covered with a layer of linoleum are carved with woodcut tools, coated with ink, and printed by hand or in a press. |
| Lintel | Lintel – A horizontal supporting beam that spans the distance between an opening, often above a window or doorway. |
| List Price | List Price – Generally accepted to be the same as suggested retail price – a price to the consumer. |
| Lithography | Lithography – A planographic printmaking process based on the repellence of oil and water and characterized by soft lines and blurry shapes. |
| Loose knot | Loose knot – A knot in timber that is not sound and may end up becoming dislodged over time. |
| Low-fire Glazes | Low-fire Glazes – Low-temperature ceramic glazes, usually associated with bright, shiny colors. |
| Lumber | Lumber – Timber of logs dressed for use. |
| Lumen | Lumen – Is the unit of luminous flux equal to the flux in a unit solid angle of one steradian from a uniform point source of one candlepower. |
| Luminaire | Luminaire – A complete lighting fixture with all components needed to be connected to the electric power supply. |
| Luster | Luster – A brilliant iridescent film used on a ceramic glazes; formed from metallic salts. |