niello (suomeksi)

Määritelmät:

(lb, en, metallurgy) Any of various black metal alloys, made of sulphur with copper, silver or lead, used to create decorative designs on other metals.
An impression on paper taken from the engraved or incised surface before the niello alloy has been inlaid.
(lb, en, transitive) To decorate (a surface) using this technique.