Perimeter

/pəˈrɪmətər/

Meaning & Definition

noun

The continuous line forming the boundary of a closed geometric figure.

To find the perimeter of the rectangle, add together the lengths of all four sides.

The outer limits or boundaries of an area.

The security team monitored the perimeter of the building to ensure no one entered unauthorized.

In a more general sense, the measurement around a figure or area.

The carpenter calculated the perimeter of the garden to determine how much fencing was needed.

From Greek 'perimetros', meaning 'measured around'.

perimeter security

Measures taken to protect the outer limits of a property.

perimeter fence

A fence surrounding a property to define its boundaries.

expand the perimeter

To increase the scope or limits of an area.

area

The extent or measurement of a surface.

geometry

The branch of mathematics dealing with shapes and their properties.

circumference

The distance around a circular object.