rainforest
noun
rain·for·est
ˈrān-ˌfȯr-əst 
-ˌfär-
variants
or less commonly rain forest
plural rainforests also rain forests
1
: a tropical woodland with an annual rainfall of at least 100 inches (254 centimeters) and marked by lofty broad-leaved evergreen trees forming a continuous canopy
called also tropical rainforest
Examples of rainforest in a Sentence
Recent Examples on the Web
With their lush rainforests, soaring mountains, and aqua-blue water, the remote islands are a dream destination for millions of people each year.
—
Abby Morgan Lebet, Glamour, 20 June 2025
So about three years ago, Ker & Downey began organizing adventure tours to Guyana’s rainforests, savannas, and mountains.
—Denny Lee, Travel + Leisure, 16 June 2025
Each well is a habitat where bacterial species collected from MIT’s campus learn to live together and form an ecological network; think of each one as an analogue of an artificial gut, coral reef or rainforest.
—Gabriel Popkin, Quanta Magazine, 16 June 2025
Indonesia shares with Papua New Guinea the largest rainforest in Asia and the third-largest in the world.
—Troy Aidan Sambajon, Christian Science Monitor, 10 June 2025
Coral-reef ecosystems—from the famous reefs of the Florida Keys National Marine Sanctuary to the Great Barrier—are the ocean’s rainforests.
—Marc Benioff, Time, 8 June 2025
In the Amazon rainforest’s Juruá River basin, researchers found a new species of frog named Ranitomeya aetherea, or the heavenly poison dart frog.
—Real-Time News Team, Miami Herald, 23 May 2025
The loss of Amazon rainforests is a potential climate tipping point
Earth’s warming could trigger sweeping changes in the natural world that would be hard, if not impossible, to reverse.
—Hiroko Tabuchi, New York Times, 22 May 2025
In addition to tropical varieties of all kinds (bromeliads, hibiscus, bananas, bird-of-paradise), Leu is home to one of the state’s largest formal rose gardens, a tropical steam garden (similar to a rainforest), a collection of fruit trees, a camellia collection, and so much more.
—Lisa Cericola, Southern Living, 31 May 2025
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Abby Morgan Lebet, Glamour, 20 June 2025
So about three years ago, Ker & Downey began organizing adventure tours to Guyana’s rainforests, savannas, and mountains.
—Denny Lee, Travel + Leisure, 16 June 2025
Each well is a habitat where bacterial species collected from MIT’s campus learn to live together and form an ecological network; think of each one as an analogue of an artificial gut, coral reef or rainforest.
—Gabriel Popkin, Quanta Magazine, 16 June 2025
Indonesia shares with Papua New Guinea the largest rainforest in Asia and the third-largest in the world.
—Troy Aidan Sambajon, Christian Science Monitor, 10 June 2025
Coral-reef ecosystems—from the famous reefs of the Florida Keys National Marine Sanctuary to the Great Barrier—are the ocean’s rainforests.
—Marc Benioff, Time, 8 June 2025
In the Amazon rainforest’s Juruá River basin, researchers found a new species of frog named Ranitomeya aetherea, or the heavenly poison dart frog.
—Real-Time News Team, Miami Herald, 23 May 2025
The loss of Amazon rainforests is a potential climate tipping point
Earth’s warming could trigger sweeping changes in the natural world that would be hard, if not impossible, to reverse.
—Hiroko Tabuchi, New York Times, 22 May 2025
In addition to tropical varieties of all kinds (bromeliads, hibiscus, bananas, bird-of-paradise), Leu is home to one of the state’s largest formal rose gardens, a tropical steam garden (similar to a rainforest), a collection of fruit trees, a camellia collection, and so much more.
—Lisa Cericola, Southern Living, 31 May 2025
Cite this Entry
“Rainforest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainforest. Accessed 30 Jun. 2025.
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