Definition

1. Noun:
   • The continuous line forming the boundary of a closed geometric figure: The perimeter is the total length of this outer boundary.
   • The outer limits or edge of an area or object: It refers to the boundary line itself or the space immediately inside it.
   • A fortified boundary or defensive line: In military contexts, it can refer to the outer defensive line of a camp or position.

Examples of Usage

• Noun:
  • The farmer measured the perimeter of the field to estimate the fencing needed.
  • Security guards patrol the perimeter of the building every hour.
  • The ancient castle had a strong perimeter wall to protect against invaders.

Advanced Usage

• "Perimeter defense": A military strategy focused on defending the outer boundary of a position.

  • The troops established a perimeter defense around their base.

• "On the perimeter": Located at or near the outer edge.

  • The new houses were built on the perimeter of the town.

Variants and Related Words

• Perimetric (adj): Relating to a perimeter.

  • The perimetric measurements were crucial for the design.

• Perimeterless (adj): Lacking a defined boundary (rare).

  • The concept described a perimeterless digital space.

Synonyms

• Circumference: The enclosing boundary of a circle or other curved geometric figure.
• Border: The edge or boundary of something, or the part near it.
• Boundary: A line that marks the limits of an area.

Related Phrases

• Perimeter fence: A fence that marks or protects the outer boundary of an area.

  • A high perimeter fence surrounds the facility.

• Perimeter road: A road that goes around the edge of a town or area.

  • Take the perimeter road to avoid the city center traffic.

Related Idioms

• "Hold the perimeter": To maintain a defensive position at the boundary.
  • The soldiers were ordered to hold the perimeter at all costs.

Noun

1. the size of something as given by the distance around it
2. a line enclosing a plane areas
3. the boundary line or the area immediately inside the boundary