(n.) Hollow relief; sculpture in relief within a sinking made for the purpose, so no part of it projects beyond the plain surface around.

anaglyph bellying boldness boss bulging cameo cameo glass cavo-rilievo cut glass embossment eminence excrescence excrescency extrusion gibbosity gibbousness glyph glyptograph high relief intaglio intaglio rilevato intaglio rilievo low relief mask medal medallion plaquette projection prominence protrusion protuberance protuberancy relief relievo salience salient sculptured glass tuberosity tuberousness