intaglio

(noun) a printing process that uses an etched or engraved plate; the plate is smeared with ink and wiped clean, then the ink left in the recesses makes the print. Synonyms: intaglio printing, gravure.

(noun) glyptic art consisting of a sunken or depressed engraving or carving on a stone or gem (as opposed to cameo). Synonyms: diaglyph.