Engraving that is inspired by last of Jackson Pollock's three pivotal pieces

• Metallic alloy
• Decorated metal
• Ornamental alloy
• Black ornamental work

Wikipedia Word definitions in Wikipedia
Niklas Grahn better known by his stage name Niello is a Swedish rapper and electronic hip hop artist. His name derives from niello decoration made of mixture of copper, silver, and lead, and used as a weapon on engraved or etched metal. He is signed to ...

Wiktionary Word definitions in Wiktionary
n. 1 Any of various black metal alloys, made of sulphur with copper, silver or lead, used to create decorative designs on other metals. 2 An impression on paper taken from the engraved or incised surface before the niello alloy has been inlaid.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Niello \Ni*el"lo\, n. [It. niello, LL. nigellum a black of blackish enamel, fr. L. nigellus, dim. of niger black. See Negro , and cf. Anneal .] A metallic alloy of a deep black color. The art, process, or method of decorating metal with incised designs ...