■ noun a brilliant deep blue pigment originally obtained from lapis lazuli, and now made from powdered fired clay, sodium carbonate, sulphur, and resin.
■ adjective archaic situated beyond the sea.
Origin
C16 (as adjective): from med. L. ultramarinus 'beyond the sea'; the name of the pigment is from obs. Ital. (azzurro) oltramarino , lit. '(azure) from overseas' (because the lapis lazuli was imported).