ruby
a red variety of corundum, used as a gem.
something made of this stone or one of its imitations, as a bearing in a watch.
a deep-red port wine.
deep red; carmine.
Ruby, Digital Technology. an open-source, high-level programming language that is purely object-oriented.
British Printing. a 5½-point type, nearly corresponding in size to American agate.
ruby-colored: ruby lips.
containing or set or adorned with a ruby or rubies: a ruby necklace.
Origin of ruby
1Other words from ruby
- ru·by·like, adjective
Other definitions for Ruby (2 of 2)
a female given name.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for ruby
/ (ˈruːbɪ) /
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: Al 2 O 3
the deep-red colour of a ruby
(as adjective): ruby lips
something resembling, made of, or containing a ruby
(as modifier): ruby necklace
(modifier) denoting a fortieth anniversary: our ruby wedding
(formerly) a size of printer's type approximately equal to 5 1/2 point
Origin of ruby
1Derived forms of ruby
- ruby-like, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for ruby
[ rōō′bē ]
A deep-red, translucent variety of the mineral corundum, containing small amounts of chromium and valued as a gem. Compare sapphire.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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