%aquatinta%

{ } n. [ It. acquatinta dyed water; acqua (L. aqua) water + tinto, fem. tinta, dyed. See Tint. ] A kind of etching in which spaces are bitten by the use of aqua fortis, by which an effect is produced resembling a drawing in water colors or India ink; also, the engraving produced by this method. [ 1913 Webster ]