Source : Webster's Revised Unabridged Dictionary (1913)

Intaglio \In*tagl"io\, n.; pl. E. {Intaglius}, It. {Intagli}.
   [It., fr. intagliare to engrave, carve; pref. in- in +
   tagliare to cut, carve. See {Detail}.]
   A cutting or engraving; a figure cut into something, as a
   gem, so as to make a design depressed below the surface of
   the material; hence, anything so carved or impressed, as a
   gem, matrix, etc.; -- opposed to {cameo}. Also used
   adjectively.

Source : WordNet®

intaglio
     n 1: 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 [syn: {intaglio
          printing}, {gravure}]
     2: glyptic art consisting of a sunken or depressed engraving or
        carving on a stone or gem (as opposed to cameo) [syn: {diaglyph}]
     [also: {intagli} (pl)]