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a strip of open land in forest or prairie, to arrest the advance of a fire
A cleared area of land intended to check the spread of forest or prairie fire.
A strip across an area in which either no combustible material is employed or in which, if timber supports are used, sand is filled and packed tightly around them.
1. Space between buildings, groups of buildings, or areas of a city designed to prevent the spread of fire from one building, group, or area to another.
2. Fire-resistive floors, walls, doors, shutters, etc., designed to prevent the spread of fire within a building.