The Collaborative International Dictionary of English v.0.48:
lithoglyptics \lith`o*glyp"tics\ (l[i^]th`[-o]*gl[i^]p"t[i^]ks), n. The art of cutting and engraving gems. [1913 Webster]WordNet (r) 3.0 (2006):
lithoglyptics n 1: the art of engraving on precious stones [syn: glyptics, lithoglyptics]