Source : Webster's Revised Unabridged Dictionary (1913)

Adulterate \A*dul"ter*ate\, a.
   1. Tainted with adultery.

   2. Debased by the admixture of a foreign substance;
      adulterated; spurious. -- {A*dul"ter*ate*ly}, adv. --
      {A*dul"ter*ate*ness}, n.