perimeter

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perimeter

1. Maths
a. the curve or line enclosing a plane area
b. the length of this curve or line
2. a medical instrument for measuring the limits of the field of vision

perimeter

[pə′rim·əd·ər]
(mathematics)
The total length of a closed curve; for example, the perimeter of a polygon is the total length of its sides.

perimeter

The boundary of a system or network, which defines the inside and outside. It is typically determined by firewalls and addresses. See DMZ.