The Collaborative International Dictionary
rain forest biome
Biome \Bi"ome\ (b[imac]"[=o]m), n. [Gr. bi`os life.]
(Ecology) a specific type of complex ecological community characterized by specific environmental conditions and a distinctive group of plants and animals, maintained in a relatively stable equilibrium, such as a rain forest biome or prairie biome.
a particular region which is a biome[1].