Source : Webster's Revised Unabridged Dictionary (1913)

Ruby \Ru"by\, a.
   Ruby-colored; red; as, ruby lips.

Ruby \Ru"by\, v. t. [imp. & p. p. {Rubied}; p. pr. & vb. n.
   {Rubying}.]
   To make red; to redden. [R.] --Pope.

Ruby \Ru"by\, n.; pl. {Rubies}. [F. rubis (cf. Pr. robi), LL.
   rubinus, robinus, fr. L. rubeus red, reddish, akin to ruber.
   See {Rouge}, {red}.]
   1. (Min.) A precious stone of a carmine red color, sometimes
      verging to violet, or intermediate between carmine and
      hyacinth red. It is a red crystallized variety of
      corundum.

   Note: Besides the true or Oriental ruby above defined, there
         are the balas ruby, or ruby spinel, a red variety of
         spinel, and the rock ruby, a red variety of garnet.

Source : WordNet®

ruby
     adj : having any of numerous bright or strong colors reminiscent
           of the color of blood or cherries or tomatoes or rubies
           [syn: {red}, {reddish}, {ruddy}, {blood-red}, {carmine},
            {cerise}, {cherry}, {cherry-red}, {crimson}, {ruby-red},
            {scarlet}]

ruby
     n 1: a transparent piece of ruby that has been cut and polished
          and is valued as a precious gem
     2: a transparent deep red variety of corundum; used as a
        gemstone and in lasers
     3: a deep and vivid red [syn: {crimson}, {deep red}]

Source : Free On-Line Dictionary of Computing

Ruby
     
        
     
        1. A {relational language} designed by Jones and M. Sheeran in
        1986 for describing and designing circuits (a {hardware
        description language}).  Ruby programs denote {binary
        relations} and programs are built-up inductively from
        primitive relations using a pre-defined set of {relational
        operators}.  Ruby programs also have a geometric
        interpretation as networks of primitive relations connected by
        wires, which is important when layout is considered in circuit
        design.
     
        Ruby has been continually developed since 1986, and has been
        used to design many different kinds of circuits, including
        {systolic arrays}, {butterfly networks} and arithmetic
        circuits.
     
        {(ftp://ftp.cs.chalmers.se/pub/misc/ruby/)}.
     
        E-mail: .
     
        ["Ruby - A Language of Relations and Higher-Order Functions",
        M. Sheeran, Proc 3rd Banff Workshop on Hardware Verification,
        Springer 1990].
     
        (1994-10-27)
     
        2. One of five pedagogical languages based on {Markov
        algorithms}, used in Higman's report (below).  The other
        languages are {Brilliant}, {Diamond}, {Nonpareil}, and
        {Pearl}.
     
        ["Nonpareil, a Machine Level Machine Independent Language for
        the Study of Semantics", B. Higman, ULICS Intl Report No ICSI
        170, U London (1968)].
     
        (1994-10-27)
     
        3. A fully {object oriented} {interpreted} {scripting
        language} by Yukihiro Matsumoto .
     
        Similar in scope to {Perl} and {Python}, Ruby has high-level
        {data types}, automatic {memory management}, {dynamic typing},
        a {module} system, {exceptions}, and a rich standard library.
        Other features are {CLU}-style {iterators} for {loop
        abstraction}, {singleton classes}/{methods} and {lexical
        closures}.
     
        In Ruby, everything is an {object}, including the basic data
        types.  For example, the number 1 is an instance of {class}
        Fixnum.
     
        Current version (stable): 1.6.7, as of 2002-03-01.
     
        {Ruby Home (http://www.ruby-lang.org/)}.
     
        {Ruby Central (http://www.rubycentral.com/)}.
     
        ["Programming Ruby - The Pragmatic Programmer's Guide", David
        Thomas, Andrew Hunt, Yukihiro Matsumoto pub. Addison Wesley
        2000].
     
        (2002-06-19)