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decontamination

[ dē′kən-tăm′ə-nāshən ]
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n.

The removal or neutralization of a contaminating substance, such as poisonous gas or a radioactive material.

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Which Word of the Day means “happening within or being the created world of a story”?
de′con•tami•nate (-nāt′) v.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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