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pol·lu·tion

pollution

 
 
pronunciation:
p lu shn
features:
Word Combinations (noun), Word History, Word Explorer
part of speech: noun
definition: poisons, waste, or other materials that cause harm to the environment.
Pollution in the lake is killing the fish.
 
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Word History
Pollution comes from a Latin word that means "to make filthy." The Latin word for mud is lutum.
Word Explorer
See
  conservation, health