Definition of "ruby" []

  • A deep red, translucent variety of the mineral corundum, highly valued as a precious stone. (noun)
  • Something, such as a watch bearing, that is made from a ruby. (noun)
  • A dark or deep red to deep purplish red. (noun)
  • Of the color ruby. (adjective)
  • A deep red transparent precious variety of corundum: occurs naturally in Myanmar and Sri Lanka but is also synthesized. It is used as a gemstone, in lasers, and for bearings and rollers in watchmaking. Formula: Al2O3 (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

  • The deep-red colour of a ruby (noun)
  • (as adjective) (noun)
  • Something resembling, made of, or containing a ruby (noun)
  • (as modifier) (noun)
  • Denoting a fortieth anniversary (noun)
  • (formerly) a size of printer's type approximately equal to 51⁄2 point (noun) (c) HarperCollins Publishers Ltd 2016

Use "ruby" in a sentence
  • "I think he covered the motivation and implementation details of what we call ruby-ng. eclass pretty well, so I'll try to give a little end-user info."
  • "If ‘going-to-church’ had any meaning and effect upon me as a child, it was the glitter of gold and silver chalices; the sheen of sacred vestments, vigil candles flickering in ruby light; stained glass windows romancing the morning and evening light; the blue of the statuesque Blessed Virgin and blood-red robe of Christ, the Sacred Heart arm and hand outstretched to the multitudes; statues draped in purple during Lent."
  • "The ruby is supposed by Moslems to be a common mineral thoroughly"