What does "pollutant" mean?

A foreign substance that makes something dirty, or impure, especially waste from human activities.

What is a synonym for "pollutant"?

Common synonyms include: contamination, poison.

Pronounced //pəˈl(j)uːtənt//.

//pəˈl(j)uːtənt// noun

noun ·Rare ·Advanced level

Noun

1
A foreign substance that makes something dirty, or impure, especially waste from human activities.
"Acid rain forms when water in the atmosphere condenses on particles containing acid-forming pollutants, such as sulfate produced by the burning of fossil fuels and nitrogen oxides from automobile exhausts."
2
waste matter that contaminates the water or air or soil wordnet