Corning Museum of Glass

A flattened, collarlike knop placed between the bowl and the stem, on the stem, or between the stem and the foot of a goblet or similar form.

The technique of forming an object by inflating a gather or gob of molten glass on the end of a blowpipe. Traditionally and in modern furnace working, the gaffer blows through the tube, slightly inflating the gob, which is then manipulated into the required form by swinging it, rolling it on a marver, or shaping it with tools or in a mold. It is then inflated to the desired size. In flameworking, one end of the glass tube is heated and closed immediately, after which the worker blows into the other end and manipulates the hot glass.

The narrow part of a goblet or tazza that separates the bowl and the foot.