pol·lu·tion /pəˈluʃən/ 名詞
1. The act of polluting, or the state of being polluted (in any sense of the verb); defilement; uncleanness; impurity.
2. Med. The emission of semen, or sperm, at other times than in sexual intercourse.
n 1: undesirable state of the natural environment being
contaminated with harmful substances as a consequence of
2: the state of being polluted [syn: befoulment, defilement]
3: the act of contaminating or polluting; including (either
intentionally or accidentally) unwanted substances or
factors [syn: contamination] [ant: decontamination]