The Collaborative International Dictionary of English v.0.48:

Alloy \Al*loy"\, v. t. [imp. & p. p. Alloyed; p. pr. & vb. n.
   Alloying.] [F. aloyer, OF. alier, allier, later allayer,
   fr. L. aligare. See Alloy, n., Ally, v. t., and cf.
   Allay.]
   1. To reduce the purity of by mixing with a less valuable
      substance; as, to alloy gold with silver or copper, or
      silver with copper.
      [1913 Webster]

   2. To mix, as metals, so as to form a compound.
      [1913 Webster]

   3. To abate, impair, or debase by mixture; to allay; as, to
      alloy pleasure with misfortunes.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Alloy \Al*loy"\, v. t.
   To form a metallic compound.
   [1913 Webster]

         Gold and iron alloy with ease.           --Ure.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Alloy \Al*loy"\, n. [OE. alai, OF. alei, F. aloyer, to alloy,
   alier to ally. See Alloy, v. t.]
   1. Any combination or compound of metals fused together; a
      mixture of metals; for example, brass, which is an alloy
      of copper and zinc. But when mercury is one of the metals,
      the compound is called an amalgam.
      [1913 Webster]

   2. The quality, or comparative purity, of gold or silver;
      fineness.
      [1913 Webster]

   3. A baser metal mixed with a finer.
      [1913 Webster]

            Fine silver is silver without the mixture of any
            baser metal. Alloy is baser metal mixed with it.
                                                  --Locke.
      [1913 Webster]

   4. Admixture of anything which lessens the value or detracts
      from; as, no happiness is without alloy. "Pure English
      without Latin alloy." --F. Harrison.
      [1913 Webster]

WordNet (r) 3.0 (2006):

alloy
    n 1: a mixture containing two or more metallic elements or
         metallic and nonmetallic elements usually fused together or
         dissolving into each other when molten; "brass is an alloy
         of zinc and copper" [syn: alloy, metal]
    2: the state of impairing the quality or reducing the value of
       something [syn: admixture, alloy]
    v 1: lower in value by increasing the base-metal content [syn:
         debase, alloy]
    2: make an alloy of

The Free On-line Dictionary of Computing (19 January 2023):

ALLOY

    A language by Thanasis Mitsolides
    which combines functional programming,
   object-oriented programming and logic programming ideas,
   and is suitable for massively parallel systems.

   Evaluating modes support serial or parallel execution, eager
   evaluation or lazy evaluation, nondeterminism or multiple
   solutions etc.  ALLOY is simple as it only requires 29
   primitives in all (half of which are for object oriented
   programming support).

   It runs on SPARC.

   (ftp://cs.nyu.edu/pub/local/alloy/).

   ["The Design and Implementation of ALLOY, a Parallel Higher
   Level Programming Language", Thanasis Mitsolides
   , PhD Thesis NYU 1990].

   (1991-06-11)