[1] : The Collaborative International Dictionary of English v.0.48

contaminate \contam"inate\ -naslt, a.
   contaminated; defiled; polluted; tainted. "contaminate
   drink." --daniel.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

contaminate \contam"inate\ ko^nta^m"i^n=at, v. t.
   imp.  p. p. contaminated; p. pr.  vb. n.
   contaminating. l. contaminatus, p. p. of contaminare to
   bring into contact, to contaminate, fr. contamen contagion,
   for contagmen; con- + root of tangere to touch. see
   contact.
   to soil, stain, or corrupt by contact; to tarnish; to sully;
   to taint; to pollute; to defile.
   1913 webster

         shall we now
         contaminate our figures with base bribes? --shak.
   1913 webster

         i would neither have simplicity imposed upon, nor
         virtue contaminated.                     --goldsmith.

   syn: to pollute; defile; sully; taint; tarnish; soil; stain;
        corrupt.
        1913 webster
see also:
contaminated contaminating contact 

[3] : WordNet (r) 2.0

contaminate
     v 1: make impure; "the industrial wastes polluted the lake" syn:
           pollute, foul
     2: make radioactive by adding radioactive material; "don't
        drink the water--it's contaminated" ant: decontaminate
see also:
pollute foul decontaminate 

[4] : Moby Thesaurus II by Grady Ward, 1.0

66 moby thesaurus words for "contaminate":
   activate, adulterate, alloy, bastardize, befoul, benasty, canker,
   charge, cheapen, coarsen, confound, corrupt, cut, debase, debauch,
   defile, deflower, degenerate, degrade, denaturalize, denature,
   deprave, desecrate, despoil, devalue, dilute, dirty, disease,
   distort, doctor, doctor up, fortify, foul, harm, infect, injure,
   irradiate, lace, mess, mess up, misuse, nasty, pervert, poison,
   pollute, prostitute, radiumize, ravage, ravish, rot, soil, spike,
   spoil, stain, sully, taint, tamper with, tarnish, twist, ulcerate,
   violate, vitiate, vulgarize, warp, water, water down

Contaminate >> C Words
Contaminate, definition of term: Contaminate
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