<p><strong>Adjective:</strong></p><ul><li>of the color ultramarine.</li><li>beyond the sea.</li></ul><p><strong>Noun:</strong></p><ul><li>a blue pigment consisting of powdered lapis lazuli.</li><li>a similar artificial blue pigment.</li><li>any of various other pigments.</li><li>a deep-blue color.</li></ul>