n. 1. An outline or indentation left by a foot on a surface. Also called footmark, footstep. 2. The surface space occupied by a structure or device: the footprint of a building. 3. a. The impact that a particular activity, person, or group has on the environment. b. See carbon footprint. c. The area affected or covered by a device or phenomenon: the footprint of a communications satellite. |
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