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boundary


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The edge between two adjacent things. 1. In ecology, the edge between adjacent habitats (ecotone). 2. In a system, the defining limit across which matter and energy can move (in an open system) or within which matter and energy are confined (in a closed system). 3. The outer edge of a political or organizational unit, including a national boundary or frontier.

1. In ecology, the edge between adjacent habitats (ecotone). 2. In a system, the defining limit across which matter and energy can move (in an open system) or within which matter and energy are confined (in a closed system). 3. The outer edge of a political or organizational unit, including a national boundary or frontier.

Subjects: Environmental Science.


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