You searched for: “perimeter
parameter, perimeter
parameter (puh RAM i tuhr) (noun)
A characteristic element or factor; a quantity or quality that gives a particular form to the thing it characterizes: Ralph told the group that they would discuss the main parameter of the project at their next meeting.
perimeter (puh RIM i tuhr) (noun)
1. The outer limits, edge, or boundary of an area: The perimeter of the pasture was marked with a fence.
2. A fortified strip or boundary usually protecting a military position: The soldiers were defending the perimeter of their camp for several days.

The parameter of Steve's job was clear; that is, he was to build a new fence marking the perimeter of the pasture.

perimeter
1. The border or outer boundary of a two-dimensional figure.
2. The length of such a boundary.
3. A line bounding or marking off an area.
4. The outermost limits.
5. Military: A fortified boundary that protects a troop position.
6. Ophthalmology: An instrument for determining the peripheral field of vision.