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).

(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.

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).

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

(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

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

(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.

(Italian, “glass with twists”) A type of blown glass made with canes that have been twisted to form spiral patterns.

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

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