Lāz'ŭ-lī, n.

n. [Fr. lazuli, Fr. & N. Lat. lapis lazuli, L. Lat. lazulum, lazurius, lazur, Sp. & Pg. azul, blue. See AZURE.] (Min.) A mineral of a fine azure-blue color, usually amorphous, or in rounded masses of a moderate size. It is often marked by yellow spots or veins of sulphuret of iron, and is much valued for ornamental work. It is distinguished from lazulite by the intenseness of its color. — Called also lapis lazuli.