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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 pol·lu·tion /pəˈluʃən/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 pol·lu·tion /pəˈluʃən/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Pol·lu·tion n.
 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.

From: WordNet (r) 2.0

      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]
      3: the act of contaminating or polluting; including (either
         intentionally or accidentally) unwanted substances or
         factors [syn: contamination] [ant: decontamination]