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Consult Chambers 21st Century Dictionary, The Chambers Thesaurus (1996) or Chambers Biographical Dictionary (1997 edition with amendments). Enter your search and choose your title from the drop-down menu.

Search results for 'pollution':

pollution noun the adverse effect on the natural environment, including human, animal or plant life, of a harmful substance that does not occur naturally, eg industrial and radioactive waste, or the concentration to harmful levels of a naturally occurring substance, eg nitrates. See also air pollution, water pollution.