Términos

A synthetic wax made by catalytic polymerization of low molecular weight, high-density ethylene. It may be used as a reversible protective coating in many applications including the conservation of outdoor sculpture.

Nombre comercial para una serie de rellenos de celulosa miscibles con agua utilizados en la conservación para la restauración de materiales como mármol, alabastro y cerámica.

Embodying multiple genders.

Churches having a centralized plan that is polygonal in shape.

Forts having a polygonal shape, which varied according to the site and requirements. Although they existed by the middle ages, prime examples of polygonal forts were those constructed resist the fire of rifled artillery and heavy mortars in the late 18th through 19th centuries.

Building material comprising uncoursed masonry used in the ancient Mediterranean world. Laid up of large blocks of stone in rough polygonal shapes, often fitted together without mortar. Similar to "cyclopean masonry," but with more precise fitting of stones due to the straight hewn sides.

Thermoplastic polyester manufactured from corn starch or other renewable resources. First developed for use as a synthetic fiber during World War 2 when organic materials were in short supply. In conservation used as a protective covering for stone materials exposed outdoors.

In molecular biology a technique for rapidly replicating a sequence of genomic DNA by a simple enzyme reaction. The process is used to produce a sufficient quantity of DNA for detailed analysis and manipulation.

Breed of dog, now extinct, that was introduced to New Zealand by Maori during their migrations from East Polynesia in the late 13th century.

Refers to any polymerized olefin. Polypropylene and polyethylene are the two most common polyolefins.

Vessels supported by two, three or four small legs, often refers particularly to Middle American archaeological objects and also the European Beaker culture of the Neolithic and Early Bronze Age.

Class containing 4 orders and around 9,000 species of ferns.

Any member of a class of carbohydrates that contain 9 or more monosaccharides linked by glycosidic bonds. Starch, agar, cellulose are polysaccharides.

Refers to all polymerized siloxanes, especially the silicones.

Educational institutions distinguished from "universities" by traditionally providing training for technicians in business, industry, and commerce for an immediate local area, having fewer residence facilities, and offering more part-time classes. For educational institutions emphasizing training in agriculture or specific trades, use "vocational schools."

Strong, tough, waxy, nonflammable synthetic resin produced by the polymerization of tetrafluoroethylene; has numerous applications. It is distinguished by its slippery surface, high melting point, and resistance to attack by almost all chemicals.

A colorless, flexible thermoplastic resin produced by the condensation of polyvinyl alcohol with formaldehyde that is used as a structural adhesive. In conservation, plasticized polyvinyl formal film has been used to fill losses in ancient textiles.

A hydrophilic silicone elastomer introduced in the 1970s. It is used in dentistry for dental and gingival impressions.