lapis lazuli UK /ˌlap.ɪs ˈlaz.jʊ.laɪ/US /ˌlæp.ɪs ˈlæz.(j)ə.li/noun 2adjective 1forms 2 noun2 •A deep blue stone, used in making jewelry, and traditionally used to make the pigment ultramarine.He saw the amber silk curtains wave to and fro: the middle window was open; in it stood a pillar of lapis lazuli, which supported an alabaster figure, Canova's Dansatrice. — 1832 •A deep, bright blue, like that of the stone. adjective1 •Of a deep, bright blue, like that of the stone.I cannot convey to you the sheer and surreal scale of everything: the towering ship, the ropes, the ties, the anchor, the pier, the vast lapis lazuli dome of the sky. — 1997 formslapides lazuli · lapis lazulis