rainforest

noun

rain·​for·​est ˈrān-ˌfȯr-əst How to pronounce rainforest (audio)
-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

2

Examples of rainforest in a Sentence

Recent Examples on the Web So a team of scientists from the Smithsonian and the Max Planck Institute of Animal Behavior exploited a natural phenomenon that occurs in the rainforest on Barro Colorado Island in Panama. Paul Smaglik, Discover Magazine, 31 May 2024 The final hearing on May 29 was held in the Amazon rainforest city of Manaus. Jake Spring, The Christian Science Monitor, 30 May 2024 The plant collection was assembled by teams of experts who conducted primary, first-hand field investigations and plant identification work in rainforest regions around the globe in addition to gathering data about traditional medicinal uses of plants from shamans and other Indigenous healers. Charlotte Observer, 29 May 2024 Whitsunday hinterland pelican spiders live in the leaves on the rainforest ground, the study said. Aspen Pflughoeft, Miami Herald, 15 May 2024 The setting this time is a lush and very wet mountain rainforest, drenched by a massive thunderstorm at a key point in the narrative. David Rooney, The Hollywood Reporter, 6 May 2024 In the highlands of the southern Amazon rainforest, the heavy rainfall creates the headwaters of a vast river system, connecting the deepest reaches of the forest through water. Irene Wright, Miami Herald, 22 May 2024 Imagine that you’re sent to a pristine rainforest to carry out a wildlife census. Steve Nadis, Quanta Magazine, 16 May 2024 In the nearly three decades since, the 39-year-old geologist has trekked into dozens of caves around the world: on islands in the Atlantic Ocean, inside glacier mills in the Alps, beneath the forest floor of the Amazon rainforest. Yudhijit Bhattacharjee, Smithsonian Magazine, 16 May 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'rainforest.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1900, in the meaning defined at sense 1

Time Traveler
The first known use of rainforest was in 1900

Dictionary Entries Near rainforest

Cite this Entry

“Rainforest.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rainforest. Accessed 8 Jun. 2024.

Kids Definition

rain forest

noun
1
: an often tropical woodland with a high annual rainfall and very tall evergreen trees with tops forming a continuous layer

called also tropical rain forest

2

More from Merriam-Webster on rainforest

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