pol‧lut‧ant /pəˈluːt
ənt/
noun [countable] a substance that makes air, water, soil etc dangerously dirty, and is caused by cars, factories etc
air/environmental/water etc pollutants
New regulations will reduce hazardous air pollutants. a dumping ground for toxic pollutantschemical/industrial etc pollutants industrial pollutants in the lake [TahlilGaran] Dictionary of Contemporary English ▲