pollutant

Từ điển WordNet v3.1 - WordNet Dictionary

noun

waste matter that contaminates the water or air or soil
• Derivationally related forms:
pollute
• Hypernyms:
waste, waste material, waste matter, waste product
• Hyponyms:
dichlorodiphenyltrichloroethane, DDT, chlorofluorocarbon, CFC, halon,
nitrogen oxide, sulfur dioxide, sulphur dioxide