Perimeter Definition

pə-rĭmĭ-tər
noun
A closed line bounding a plane area.
American Heritage
The outer boundary of a figure or area.
Webster's New World
The total length of this.
Webster's New World
An optical instrument for testing the scope of vision and the visual powers of various parts of the retina.
Webster's New World
A boundary strip where defenses are set up.
Webster's New World
Antonyms:

Other Word Forms of Perimeter

Noun

Singular:
perimeter
Plural:
perimeters

Origin of Perimeter

  • Middle English perimetre from Latin perimetros from Greek peri- peri- metron measure meter2

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Ancient Greek περίμετρος (perimetros).

    From Wiktionary

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