1350–1400; Middle English; see pollute, -ed2

pollutedness, noun
unpolluted, adjective
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verb (used with object), polluted, polluting.
to make foul or unclean, especially with harmful chemical or waste products; dirty: to pollute the air with smoke.
to make morally unclean; defile.
to render ceremonially impure; desecrate: to pollute a house of worship.
Informal. to render less effective or efficient: The use of inferior equipment has polluted the company's service.

1325–75; Middle English polute < Latin pollūtus past participle of polluere to soil, defile, equivalent to pol-, assimilated variant of por- (see pollicitation; here marking the action as complete) + -lū- base of -luere (akin to lutum mud, dirt, lustrum muddy place) + -tus past participle suffix

polluter, noun
pollutive, adjective
nonpolluting, adjective
unpolluting, adjective

1. soil, befoul. 2. taint, contaminate, vitiate, corrupt, debase, deprave.

1, 2. purify.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pollute (pəˈluːt)
1.  to contaminate, as with poisonous or harmful substances
2.  to make morally corrupt or impure; sully
3.  to desecrate or defile
[C14 polute, from Latin polluere to defile]

polluted (pəˈluːtɪd)
1.  made unclean or impure; contaminated
2.  slang (US) intoxicated; drunk

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American Heritage
Medical Dictionary

pollute pol·lute (pə-lōōt')
v. pol·lut·ed, pol·lut·ing, pol·lutes

  1. To make unfit for or harmful to living things, especially by the addition of waste matter; contaminate.

  2. To make less suitable for an activity, especially by the introduction of unwanted factors.

pol·lut'er n.
The American Heritage® Stedman's Medical Dictionary
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Example sentences
Nearly devoid of insect and disease problems, it's also unfazed by polluted air.
The waters here, once polluted, are now swimming clean.
Pigs run wild on a highway while dignitaries swim in a polluted river.
The mind-set of the past was to control and channel storm water, because it was
  traditionally polluted and toxic.
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