rainforest

or rain for·est

[ reyn-fawr-ist, ‐for‐ ]

/ ˈreɪnˌfɔr ɪst, ‐ˌfɒr‐ /

noun

a tropical forest, usually of tall, densely growing, broad-leaved evergreen trees in an area of high annual rainfall.

Also called trop·i·cal rain·for·est .

Origin of rainforest

First recorded in 1900–05

Words nearby rainforest

rain dance, rain date, raindrop, Rainey, rainfall, rainforest, rain frog, rain gauge, Rainier, Rainier III, raining cats and dogs

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for rainforest

He could be remade into a defender of the environment, a preserver of habitats and champion of rainforest ecology.
Can Tarzan of the Apes Survive in a Post-Colonial World?|Ted Gioia|November 23, 2014|DAILY BEAST
One of their more memorable ones supported the Rainforest Action Network in 1988 at Madison Square Garden.
How the Grateful Dead Invented the Ice Bucket Challenge|Barry Barnes|August 24, 2014|DAILY BEAST
To make room for these plantations, vast areas of rainforest are felled, which leads to primary and secondary loss of species.
Our Taste for Cheap Palm Oil Is Killing Chimpanzees|Carrie Arnold|July 11, 2014|DAILY BEAST
The anthropologist Claude Levi-Strauss saw the Amazon rainforest, as he saw most things, as a complex structure.
Exploring the Amazon, While We Still Can|Darrell Hartman|May 15, 2014|DAILY BEAST

In the Amazon rainforest, lemon ants are said to have a tangy flavor.
Cicadas, Grasshoppers, Locusts, Ants Among the Tastiest Insects|Nina Strochlic|May 14, 2013|DAILY BEAST
A town and railroad junction in the middle of the isthmus; rainforest .
A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico|William E. Duellman
Characteristically this species inhabits savannas and open forest; thus, its occurrence in the rainforest at Toocog is surprising.
Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala|William E. Duellman
In the rainforest the terrestrial-breeding amphibians are active during the dry season.
A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico|William E. Duellman
Adults were found along streams and in marshes in savannas and rainforest.
A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico|William E. Duellman
In the dry season the river was clear; it is surrounded by rainforest.
Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala|William E. Duellman

British Dictionary definitions for rainforest

rainforest

/ (ˈreɪnˌfɒrɪst) /

noun

dense forest found in tropical areas of heavy rainfall. The trees are broad-leaved and evergreen, and the vegetation tends to grow in three layers (undergrowth, intermediate trees and shrubs, and very tall trees, which form a canopy)Also called: selva

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for rainforest

rainforest

[ rān′fôr′ĭst ]

A dense evergreen forest with an annual rainfall of at least 406 cm (160 inches).

A Closer Look

Most of the world's rainforests lie near the equator and have tropical climates. However, cooler rainforests exist in the Pacific Northwest region of the United States and Canada. The world's largest rainforest is located in the Amazon River basin. The Amazon rainforest has been described as the lungs of our planet because it continuously recycles carbon dioxide into oxygen, with a significant percentage of the world's atmospheric oxygen being produced in this region. Besides helping to regulate the world's climate, rainforests host an extraordinary diversity of life. Scientists believe that as many as half of the Earth's different species of plants and animals are found only in the rainforests, which take up a mere 7 percent of the world's landmass. By some estimates, more than half of the Earth's original rainforests have already been burned or cut down for timber or grazing land, and more than 130 plant, animal, and insect species are thought to be going extinct daily as a result of the lost habitat. Currently 25 percent of Western pharmaceuticals are derived from tropical rainforest ingredients, and 70 percent of the plants with anticancer properties are found only in this shrinking biome.

单词	rainforest
释义	rainforest or rain for·est [ reyn-fawr-ist, ‐for‐ ] / ˈreɪnˌfɔr ɪst, ‐ˌfɒr‐ / noun a tropical forest, usually of tall, densely growing, broad-leaved evergreen trees in an area of high annual rainfall. Also called trop·i·cal rain·for·est . Origin of rainforest First recorded in 1900–05 Words nearby rainforest rain dance, rain date, raindrop, Rainey, rainfall, rainforest, rain frog, rain gauge, Rainier, Rainier III, raining cats and dogs Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for rainforest He could be remade into a defender of the environment, a preserver of habitats and champion of rainforest ecology. Can Tarzan of the Apes Survive in a Post-Colonial World?\|Ted Gioia\|November 23, 2014\|DAILY BEAST One of their more memorable ones supported the Rainforest Action Network in 1988 at Madison Square Garden. How the Grateful Dead Invented the Ice Bucket Challenge\|Barry Barnes\|August 24, 2014\|DAILY BEAST To make room for these plantations, vast areas of rainforest are felled, which leads to primary and secondary loss of species. Our Taste for Cheap Palm Oil Is Killing Chimpanzees\|Carrie Arnold\|July 11, 2014\|DAILY BEAST The anthropologist Claude Levi-Strauss saw the Amazon rainforest, as he saw most things, as a complex structure. Exploring the Amazon, While We Still Can\|Darrell Hartman\|May 15, 2014\|DAILY BEAST In the Amazon rainforest, lemon ants are said to have a tangy flavor. Cicadas, Grasshoppers, Locusts, Ants Among the Tastiest Insects\|Nina Strochlic\|May 14, 2013\|DAILY BEAST A town and railroad junction in the middle of the isthmus; rainforest . A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico\|William E. Duellman Characteristically this species inhabits savannas and open forest; thus, its occurrence in the rainforest at Toocog is surprising. Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala\|William E. Duellman In the rainforest the terrestrial-breeding amphibians are active during the dry season. A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico\|William E. Duellman Adults were found along streams and in marshes in savannas and rainforest. A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico\|William E. Duellman In the dry season the river was clear; it is surrounded by rainforest. Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala\|William E. Duellman British Dictionary definitions for rainforest rainforest / (ˈreɪnˌfɒrɪst) / noun dense forest found in tropical areas of heavy rainfall. The trees are broad-leaved and evergreen, and the vegetation tends to grow in three layers (undergrowth, intermediate trees and shrubs, and very tall trees, which form a canopy)Also called: selva Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for rainforest rainforest [ rān′fôr′ĭst ] A dense evergreen forest with an annual rainfall of at least 406 cm (160 inches). A Closer Look Most of the world's rainforests lie near the equator and have tropical climates. However, cooler rainforests exist in the Pacific Northwest region of the United States and Canada. The world's largest rainforest is located in the Amazon River basin. The Amazon rainforest has been described as the lungs of our planet because it continuously recycles carbon dioxide into oxygen, with a significant percentage of the world's atmospheric oxygen being produced in this region. Besides helping to regulate the world's climate, rainforests host an extraordinary diversity of life. Scientists believe that as many as half of the Earth's different species of plants and animals are found only in the rainforests, which take up a mere 7 percent of the world's landmass. By some estimates, more than half of the Earth's original rainforests have already been burned or cut down for timber or grazing land, and more than 130 plant, animal, and insect species are thought to be going extinct daily as a result of the lost habitat. Currently 25 percent of Western pharmaceuticals are derived from tropical rainforest ingredients, and 70 percent of the plants with anticancer properties are found only in this shrinking biome. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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