Definitions for rainforest

This page provides all possible meanings and translations of the word rainforest

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. rain forest, rainforest(noun)

    a forest with heavy annual rainfall

WiktionaryRate this definition:(0.00 / 0 votes)

  1. rainforest(Noun)

    a forest in a climate with high annual rainfall and no dry season

  2. Origin: a calque of Regenwald.

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  1. Rainforest

    Rainforests are forests characterized by high rainfall, with definitions based on a minimum normal annual rainfall of 1750–2000 mm. The monsoon trough, alternatively known as the intertropical convergence zone, plays a significant role in creating the climatic conditions necessary for the Earth's tropical rainforests. Around 40% to 75% of all biotic species are indigenous to the rainforests. It has been estimated that there may be many millions of species of plants, insects and microorganisms still undiscovered in tropical rainforests. Tropical rainforests have been called the "jewels of the Earth" and the "world's largest pharmacy", because over one quarter of natural medicines have been discovered there. Rainforests are also responsible for 28% of the world's oxygen turnover, sometimes misnamed oxygen production, processing it through photosynthesis from carbon dioxide and consuming it through respiration. The undergrowth in some areas of a rainforest can be restricted by poor penetration of sunlight to ground level. If the leaf canopy is destroyed or thinned, the ground beneath is soon colonized by a dense, tangled growth of vines, shrubs and small trees, called a jungle. There are two types of rainforest, tropical rainforest and temperate rainforest.


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