a tropical forest, usually of tall, densely growing, broad-leaved evergreen trees in an area of high annual rainfall.
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
1899, apparently a loan-translation of German Regenwald, coined by A.F.W. Schimper for his 1898 work “Pflanzengeographie.”
A dense evergreen forest with an annual rainfall of at least 406 cm (160 inches).
Our Living Language : 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.
noun 1. a tropical forest, usually of tall, densely growing, broad-leaved evergreen trees in an area of high annual rainfall. n. 1899, apparently a loan-translation of German Regenwald, coined by A.F.W. Schimper for his 1898 work “Pflanzengeographie.”
noun, Chiefly Southern U.S. 1. a tree frog, especially a spring peeper.
noun 1. an instrument for measuring rainfall. noun 1. an instrument for measuring rainfall or snowfall, consisting of a cylinder covered by a funnel-like lid Also called pluviometer
[ruh-neer, rey-, rey-neer] /rəˈnɪər, reɪ-, ˈreɪ nɪər/ noun 1. Mount, a volcanic peak in W Washington, in the Cascade Range. 14,408 feet (4392 meters). [rey-nee] /ˈreɪ ni/ adjective, rainier, rainiest. 1. characterized by : rainy weather; a rainy region. 2. wet with : rainy streets. 3. bringing : rainy clouds. [rey-neer, re-, ruh-; French re-nyey] […]