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(a) Large, indefinite portions of the earth's surface. (b) Specified districts or territories. (c) Areas of interest or activity; spheres. (d) Ecology. Parts of the earth characterized by distinctive animal or plant life. [Adapted from American Heritage Dic. of the English Language, 4th ed.]
Alexandria Digital Library Feature Type Thesaurus
Agricultural regions (2 items)
Biogeographic regions (68 items)
Coastal zones (77 items)
Land regions (13 items)
Map regions (2 items)
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