Main Entry: ¹ni·el·lo

Pronunciation: \nē-ˈe-(ˌ)lō\

Function: noun

Inflected Form(s): plural ni·el·li \-(ˌ)lē\ or niellos

Etymology: Italian, from Medieval Latin nigellum, from neuter of Latin nigellus blackish, diminutive of niger black

Date: 1816

1 : any of several black enamel-like alloys usually of sulfur with silver, copper, and lead
2 : the art or process of decorating metal with incised designs filled with niello
3 : a piece of metal or an object decorated with niello