Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A blue pigment made from powdered lapis lazuli.
  • n. A similar pigment made synthetically by heating clay, sodium carbonate, and sulfur together.
  • n. A vivid or strong blue to purplish blue.
  • adj. Of the color ultramarine.
  • adj. Of or from a place beyond the sea.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a brilliant blue pigment that is either extracted from mineral deposits or made synthetically.
  • n. a brilliant pure dark blue or slightly purplish colour.
  • adj. having a brilliant blue colour.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Situated or being beyond the sea.
  • n. A blue pigment formerly obtained by powdering lapis lazuli, but now produced in large quantities by fusing together silica, alumina, soda, and sulphur, thus forming a glass, colored blue by the sodium polysulphides made in the fusion. Also used adjectively.

from The Century Dictionary and Cyclopedia

  • n. A beautiful natural blue pigment, obtained from the mineral lapis lazuli, a variety of haüyne.
  • n. Azure-stone.
  • Situated or being beyond the sea.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. blue pigment made of powdered lapis lazuli
  • n. a vivid blue to purple-blue color
  • adj. of a brilliant pure blue to purplish blue color

Etymologies

From Medieval Latin ultrāmarīnus, from beyond the sea : Latin ultrā, ultra- + Latin marīnus, of the sea (from mare, sea; see mori- in Indo-European roots).
(American Heritage® Dictionary of the English Language, Fourth Edition)

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