Which of these definitions do you all believe carbon dioxide does NOT meet?
POLLUTANT:
something that pollutes.
2. any substance, as certain chemicals or waste products, that renders the air, soil, water, or other natural resource harmful or unsuitable for a specific purpose. --Random House Dictionary, © Random House, Inc. 2013.
a substance that pollutes, esp a chemical or similar substance that is produced as a waste product of an industrial process --Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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n.
Something that pollutes, especially a waste material that contaminates air, soil, or water.
The American Heritage® Stedman's Medical Dictionary
pollutant (pə-l t'nt) Pronunciation Key
A substance or condition that contaminates air, water, or soil. Pollutants can be artificial substances, such as pesticides and PCBs, or naturally occurring substances, such as oil or carbon dioxide, that occur in harmful concentrations in a given environment. Heat transmitted to natural waterways through warm-water discharge from power plants and uncontained radioactivity from nuclear wastes are also considered pollutants. --The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
POLLUTE:
pol·lute [puh-loot] Show IPA
verb (used with object), pol·lut·ed, pol·lut·ing.
1.
to make foul or unclean, especially with harmful chemical or waste products; dirty: to pollute the air with smoke.
2.
to make morally unclean; defile.
3.
to render ceremonially impure; desecrate: to pollute a house of worship.
4.
Informal. to render less effective or efficient: The use of inferior equipment has polluted the company's service.