All About Glass

All About Glass

This is your resource for exploring various topics in glass: delve deeper with this collection of articles, multimedia, and virtual books all about glass. Content is frequently added to the area, so check back for new items. If you have a topic you'd like to see covered, send us your suggestion. If you have a specific question, Ask a Glass Question at our Rakow Research Library.

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Williamite glass
Glass Dictionary Term

A late 17th- and 18th-century English drinking vessel engraved with a toast, a symbol (an orange tree, for example), or a motto supporting William of Orange (King William III, r. 1689-1702), or with his portrait. William III was a Protestant, and his political opponents were the Roman Catholic

Wine set
Glass Dictionary Term

A decanter with matching wineglasses, sometimes with a matching tray. wine sets wine-set Decanter set with 6 glasses

Winged goblet
Glass Dictionary Term

A type of goblet with the stem in the form of vertical, winglike flanges composed of trails arranged in a complex design that may include dragons, sea horses, and other creatures. The German term for a winged goblet is Flügelglas. winged goblets winged-goblet winged-goblets Flügelglas Winged Goblet

Witch ball
Glass Dictionary Term

A glass globe intended to be hung in a prominent place to ward off the evil eye. witch balls witches balls witches ball witch-ball Witch ball

Yard-of-ale
Glass Dictionary Term

A type of English ale glass with a trumpet-shaped mouth, a long and narrow neck, and a small globular body. These glasses were often one yard (three feet) long. They contained about one pint and functioned like trick glasses. The yard-of-ale came into use in the 1680s and continued into the 19th

Zanfirico
Glass Dictionary Term

(Italian) A type of polychrome cane made by assembling a bundle of rods of different colors, and heating it until it is soft. The bundle is then attached to two pontils and elongated by drawing. At the same time, the bundle is twisted to produce a spiral pattern. Zanfirico, which is a synonym for

Zwischengoldglas
Glass Dictionary Term

(German, “gold between glass”) A type of decoration, produced in Bohemia and Austria in the 18th century, in which a design in gold or silver leaf is incorporated between two vessels that fit together precisely. Unlike Hellenistic and Roman gold glass, which is fused, Zwischengoldglas is bonded

Agate glass
Glass Dictionary Term

Glass marbled with brown, blue, green, and yellow swirls in imitation of chalcedony and other banded semiprecious stones. Calcedonio Agate Vase with Cranes Flying Over the Sea

Air twist
Glass Dictionary Term

A type of decoration in the stems of 18th-century and later drinking glasses made by twisting columns of air.

Toots Zynsky
Article

When I hear music, it translates into color.—Toots Zynsky Toots Zynsky’s distinctive heat-formed  filet de verre  (glass thread) vessels enjoy a widespread popularity and deserved acclaim for their often extraordinary and always unique explorations in color. Defying categorization, her pieces

Vetro a fili
Glass Dictionary Term

(Italian, “glass with threads”) A type of blown glass made with canes that form a pattern of parallel lines. vetro a filis vetro a file Wineglass

Vetro a reticello
Glass Dictionary Term

(Italian, “glass with a small network”) A type of blown glass made with canes organized in a crisscross pattern to form a fine net, which may contain tiny air traps. vetro a reticelo Reticellos Reticelo Retichello Reticello Goblet

Vetro a retorti
Glass Dictionary Term

(Italian, “glass with twists”) A type of blown glass made with canes that have been twisted to form spiral patterns. vetro a retortis retortolis retortole retortoles retortis retortie retorte Retortoli Retorti Footed Dish (vetro a retortoli)

Vetro di trina
Glass Dictionary Term

(Italian, “lace glass”) A term loosely applied to various types of vetro a reticello. Vetro a reticello Dish (vetro a reticello)

Victory beaker
Glass Dictionary Term

A first-century A.D. Roman mold-blown drinking vessel inscribed in Greek with words meaning “Take the victory.” victory beakers victory-beaker victory-beakers Victory

Warzenbecher
Glass Dictionary Term

(German, “wart beaker”) A heavy glass tumbler made of forest glass and decorated with prunts. It was produced in Germany in the 16th and 17th centuries. warzenbechers warzenbecker warzenbeckers Warzen becher Prunted Beaker

Waster
Glass Dictionary Term

A defective object discarded during manufacture. Wasters are routinely recycled as cullet. wasters

Water set
Glass Dictionary Term

A pitcher with matching tumblers, sometimes with a matching tray. water sets water-set 7-piece Toy Water Set

Weathering
Glass Dictionary Term

Changes on the surface of glass caused by chemical reaction with the environment. Weathering usually involves the leaching of alkali from the glass by water, leaving behind siliceous weathering products that are often laminar. whethering weathered Statuette of Venus

Wheel engraving
Glass Dictionary Term

A process of decorating the surface of glass by the grinding action of a wheel, using disks of various sizes and materials (usually copper, but sometimes stone), and an abrasive in a grease or slurry applied to a wheel, as the engraver holds the object against the underside of the rotating wheel.

Undercutting
Glass Dictionary Term

The technique of decorating glass in high relief by cutting or carving away part of the glass between the body of an object and its decoration (e.g., on a cage cup). undercut undercuts Cage Cup

Unguentarium
Glass Dictionary Term

(from Latin), pl. unguentaria. A term commonly applied to ancient Roman toilet bottles. It appears, however, that the term was “invented” in the 19th century, on analogy with unguentarius (perfume seller) and similar Latin words that the Romans used in connection with perfumes. unguentaria Toilet

Uranium glass
Glass Dictionary Term

Glass colored with uranium oxide. The earliest reference to uranium glass appears to date from 1817. It was made popular by Josef Riedel in and after 1834. See also Annagelb (which is yellow) and Annagrün (which is green). uranium glasses uranium-glass Cut Uranium Glass Vase

Vermiculée
Glass Dictionary Term

(French, “vermiculate”) design: A convoluted ground pattern resembling worm tracks. vermiculées vermiculee vermiculé vermicule

Verre églomisé
Glass Dictionary Term

(French) A decorative technique in which gold or silver leaf is applied to the back side of a piece of glass, engraved, and protected by varnish, metal foil, or another piece of glass. The name is derived from the French mirror and picture framer Jean-Baptiste Glomy (d. 1786). Decoration of this

Trailing
Glass Dictionary Term

The process of applying trails of glass as decoration on the body, handle, or foot of a vessel. It is done by laying or winding softened threads on a glass object during manufacture. Combed decoration Cosmetic Bottle (Amphoriskos)

Trick glass
Glass Dictionary Term

A glass, usually for wine and often of extraordinary shape, designed to be as difficult as possible to drink from without spilling the contents. In drinking competitions, any drinker who spilled wine was required to start again with a full glass. trick glasses trick-glass trick-glasses puzzle

Trulla
Glass Dictionary Term

(from Latin) The popular term for an ancient Roman dipper in the form of a shallow bowl with a single horizontal handle. trullas trullae Pan

Tureen
Glass Dictionary Term

(from French terrine, “flat-bottomed dish”) A deep, usually oval bowl with a lid, for serving soup; also, a smaller vessel with the same form, for serving sauce or gravy. tureens turene turrene turreen Covered Bowl

Twist
Glass Dictionary Term

A type of decoration in the stems of 18th-century and later drinking glasses, made by twisting a glass rod embedded with threads of white glass, threads of colored glass, columns of air (air twists), or a combination of all three. twists

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