niello

• ⇰ A metallic alloy of a deep black color.
• ⇰ The art, process, or method of decorating metal with incised designs filled with the black alloy.
• ⇰ A piece of metal, or any other object, so decorated.
• ⇰ An impression on paper taken from an ancient incised decoration or metal plate.
• ⇰ An impression on paper taken from the engraved or incised surface before the niello alloy has been inlaid.