- 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).