Definitions for "Perimeter"
The outer boundary of a body or figure, or the sum of all the sides.
The outside boundary around a structure.
The distance around the outside of a figure.
An instrument for determining the extent and shape of the field of vision.
Instrument used for determining central or peripheral field of vision.
an AC-powered or manual device intended to determine the extent of the peripheral visual field of a patient
Keywords:  outer, enemy, military, belongs, beyond
The outer limits of an area.
outer limits of a military position. The area beyond the perimeter belongs to the enemy.
A specific construction consisting of a rated floor, a non-rated exterior curtain wall and fill and forming materials installed between the floor and and curtain wall to prevent the spread of fire vertically.
Keywords:  virtual, permanent, circuit
Keywords:  plane, enclosing, line, areas
a line enclosing a plane areas
Keywords:  edge, area
The edge of an area.