footprint

[foot-print]
noun
1.
a mark left by the shod or unshod foot, as in earth or sand.
2.
an impression of the sole of a person's foot, especially one taken for purposes of identification.
3.
Informal. the track of a tire, especially on wet pavement.
4.
the area affected by an increase in the level of sound or noise, as that generated by an airplane.
5.
Telecommunications. the area of the earth's surface within which a communications satellite's signals can be received.
6.
Aerospace. the area within which it is predicted that a spacecraft or its debris will land.
7.
the surface space of a desk or tabletop occupied by a piece of equipment, especially a microcomputer or related device.
8.
the surface area occupied by any structure, device, etc.: The new store will have a large footprint.
9.
the impact that humans have on the environment, especially in the utilization of natural resources: China's water footprint; ways to reduce our environmental footprint.
10.
any impact or effect, or its scope: the company’s wide footprint across Puerto Rico.
11.
Also called ecological footprint. the amount of biologically productive land and ocean area required to sustain the resource consumption and waste production of an individual, population, or human activity: measured in global acres or hectares.
12.
Computers. the amount of memory or disk space required by a program.

Origin:
1545–55; foot + print

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
footprint (ˈfʊtˌprɪnt)
 
n
1.  an indentation or outline of the foot of a person or animal on a surface
2.  the shape and size of the area something occupies: enlarging the footprint of the building; a computer with a small footprint
3.  impact on the environment
4.  a military presence: since 1944, America's military footprint in Europe has been in the West
5.  computing See also electronic footprint the amount of resources, such as disk space and memory, that an application requires
6.  an identifying characteristic on land or water, such as the area in which an aircraft's sonic boom can be heard or the area covered by the down-blast of a hovercraft
7.  the area in which the signal from a direct broadcasting satellite is receivable

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

footprint
1550s, from foot + print. Related: Footprints.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences for footprints
The enormous footprints for which it is named have been as large as long and
  wide.
The first bigfoot hunters began following the discovery of footprints at bluff
  creek.
The next morning, large footprints were claimed to be found around the cabin.
Fossilized footprints indicate that it probably lived in herds.
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