Pollution - Definition
pollution
n 1: undesirable state of the natural environment being
contaminated with harmful substances as a consequence of
human activities
2: the state of being polluted [syn: befoulment, defilement,
pollution]
3: the act of contaminating or polluting; including (either
intentionally or accidentally) unwanted substances or factors
[syn: contamination, pollution] [ant: decontamination]