from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Something that pollutes, especially a waste material that contaminates air, soil, or water.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A foreign substance that makes something dirty, or impure, especially waste from human activities.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun waste matter that contaminates the water or air or soil


Sorry, no etymologies found.


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  • Citation on pus.

    June 22, 2008