- Wedge- or barlike devices, usually of hardwood, inserted between the strings and soundboard of chordophones for the purpose of raising the strings to a required distance and of transmitting the vibrations of the strings to the soundboard.
- Representations of humans, animals, or mythical beasts, in any medium.
- Structures with apertures designed to allow water to spout or flow periodically or continuously, as for amenity or public access.
- Printmaking process of engraving using plates of steel or steel-faced copper; replaced the use of less durable copper plates in the early 19th century. For the engraving of steel plates for the production of documents such as banknotes, use "siderography."
- Town and country areas with heterogeneous patchy mixture of residential areas, commercial centers, cropland, managed vegetation, and natural areas.
- Transparent aqueous based paint produced by mixing ground pigments with water and, generally, gum arabic; paints made with vegetable gum binders were used by Egyptian, Greek, and Roman artists for wall paintings. Japanese and Chinese painters extensively used watercolor paints on silk panels and delicate paper scrolls. In the 16th through18th century, watercolor paints were used for miniature illustrations on porcelain, ivory, cards, books and manuscripts. By the 18th and early 19th centuries, watercolors rapidly increased in popularity due to the availability of small cakes of watercolor paints in metal pans, usually applied to a paper support by using a brush.
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