tastevin [taht-VAHN; tahst-VAHN]

from

Used in Burgundian cellars for analyzing and tasting wine, a tastevin is a small, shallow silver cup with raised indentations that help reflect the wine's color and exhibit its clarity. It's become customary for a SOMMELIER to wear a tastevin on a chain or ribbon around his or her neck. The Burgundian wine tasting fraternity, Chevaliers du Tastevin, was named after the tasting cup. A tastevin is sometimes referred to as a wine taster.