Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

pollution

play
noun pol·lu·tion \pə-ˈlü-shən\

Simple Definition of pollution

  • : the action or process of making land, water, air, etc., dirty and not safe or suitable to use

  • : substances that make land, water, air, etc., dirty and not safe or suitable to use

Source: Merriam-Webster's Learner's Dictionary

Full Definition of pollution

  1. 1 :  the action of polluting especially by environmental contamination with man-made waste; also :  the condition of being polluted

  2. 2 :  pollutant

Examples of pollution in a sentence

  1. industrial practices that have caused pollution of the air and water

  2. The tests showed high levels of pollution in the water.

  3. The fish are dying of pollution.



14th Century

First Known Use of pollution

14th century

Rhymes with pollution


POLLUTION Defined for Kids

pollution

play
noun pol·lu·tion \pə-ˈlü-shən\

Definition of pollution for Students

  1. :  the action of making something impure and often unsafe or unsuitable for use :  the state of being polluted




Medical Dictionary

pollution

play
noun pol·lu·tion \pə-ˈlü-shən\

Medical Definition of pollution

  1. 1:  the action of polluting or the condition of being polluted

  2. 2:  pollutant





Seen and Heard

What made you want to look up pollution? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to lessen in amount, effect, or force

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

two-chairs-on-a-pier-by-the-ocean-in-summer

Which of the following words means “of or relating to summer”?

brumal estival hiemal vernal
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ