deforestation

American  

[dee-fawr-uh-stey-shuhn, for-] / ˌdi fɔr əˈsteɪ ʃən, fɒr- /

noun

1. the clearing or severe thinning of a forest or other wooded area, leaving few or no trees.

   Most of the world’s deforestation is happening in Brazil.

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deforestation Scientific  

/ dē-fôr′ĭ-stā′shən /

1. The cutting down and removal of all or most of the trees in a forested area. Deforestation can erode soils, contribute to desertification and the pollution of waterways, and decrease biodiversity through the destruction of habitat.

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deforestation Cultural  

1. The process of destroying a forest and replacing it with something else. The term is used today to refer to the destruction of forests by human beings and their replacement by agricultural systems.

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Discover More

Deforestation is considered to be a main contributor to the greenhouse effect.

Etymology

Origin of deforestation

First recorded in 1870–75; deforest ( def. ) + -ation ( def. )

Explanation

Deforestation is the clearing of trees, transforming a wooded area into cleared land. The first step in turning the wilderness into a shopping center is deforestation. You can see the word forest in deforestation. The prefix de- means "remove" and the suffix -ation signals "the act or state of." So deforestation is the act of removing a forest. First, the trees are chopped down, the wood shipped around the world for making products. Then the land is made smooth enough for homes, businesses, or farming. Today, in many places, laws limit the amount of deforestation.

Example Sentences

Environmentalists have also condemned the expansion of illegal mining in the area, saying it has caused rampant deforestation and river pollution.

From Barron's • Mar. 10, 2026

Illegal mining has expanded in the country, with many environmentalists condemning the deforestation and pollution.

From BBC • Mar. 4, 2026

The one saving grace, said Timer, has been the public's "very significant rising awareness" of deforestation in Indonesia since the disaster.

From Barron's • Feb. 19, 2026

While it is true that Rapa Nui experienced widespread deforestation, many studies now question whether this led to societal collapse.

From Science Daily • Feb. 10, 2026

“Illegal deforestation makes it worse. Land that has been cleared for development—cattle grazing, clearing for lumber—increases the likelihood of burning. Another stress.”

From "Paradise on Fire" by Jewell Parker Rhodes

Related Words

• desertification
• erosion
• logging