cabochon
cabochon (ka`bu*shan"; Fr. kȧ`bo`shôN") , noun
[French]
(Jewelry) A stone of convex form, highly polished, but not faceted; also, the style of cutting itself. Such stones are said to be cut en cabochon.
cabochon (ka`bu*shan"; Fr. kȧ`bo`shôN") , adjective
[see cabochon, n..]