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(anatomy) any encircling or beltlike structure

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an area or region distinguished from adjacent parts by a distinctive feature or characteristic

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any of the regions of the surface of the Earth loosely divided according to latitude or longitude

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a circumscribed geographical region characterized by some distinctive features

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separate or apportion into sections

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regulate housing in

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artillery or mortar fire delivered in a constant direction at several quadrant elevations

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dividing an area into zones or sections reserved for different purposes such as residence and business and manufacturing etc

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a board of officials who divide an area into zones that are subject to different restrictions

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a commission delegated to supervise the zoning of areas for residential or commercial use

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fall asleep fast, as when one is extremely tired

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lose consciousness due to a sudden trauma, for example