pollution
[ puh-loo-shuhn ]
/ pəˈlu ʃən /
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noun
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Origin of pollution
OTHER WORDS FROM pollution
self-pol·lu·tion, nounWords nearby pollution
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
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British Dictionary definitions for pollution
pollution
/ (pəˈluːʃən) /
noun
the act of polluting or the state of being polluted
harmful or poisonous substances introduced into an environment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for pollution
pollution
[ pə-lōō′shən ]
n.
The act or process of polluting or the state of being polluted, especially the contamination of soil, water, or the atmosphere by the discharge of harmful substances.
A pollutant or group of pollutants.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for pollution
pollution
[ pə-lōō′shən ]
The contamination of air, water, or soil by substances that are harmful to living organisms. Pollution can occur naturally, for example through volcanic eruptions, or as the result of human activities, such as the spilling of oil or disposal of industrial waste.♦ Light from cities and towns at night that interferes with astronomical observations is known as light pollution. It can also disturb natural rhythms of growth in plants and other organisms.♦ Continuous noise that is loud enough to be annoying or physically harmful is known as noise pollution.♦ Heat from hot water that is discharged from a factory into a river or lake, where it can kill or endanger aquatic life, is known as thermal pollution.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.