contaminate
1. [ verb ] make impure
Synonyms: foul pollute
Examples:

"The industrial wastes polluted the lake"

Related terms: dirty infect pollution befoulment pollutant contaminant defiler
2. [ verb ] make radioactive by adding radioactive material
Examples:

"Don't drink the water--it's contaminated"

Related terms: decontaminate change contaminant
Similar spelling:   contaminated
  contaminative
  contaminant
  contaminating
  contamination
  continuant
  continue
  continuance
  contemplate
  contained
  container
  continent
  continual
  continued
  contemplative
  continency
  continence
  contingent
  contingence
  continental
  continually
  containment
  contingency
  containerise
  containerful
  continuation
  continuo
  containerize
  containerised
  contempt
  containership
  contemplation
  contingent_on
  containerized
  continuum