perimeter.
The sum of the distance of all the lengths of the sides of an object.
Meaning & usage
The sum of the distance of all the lengths of the sides of an object.
The length of such a boundary.
The outer limits of an area.
A fortified strip or boundary usually protecting a military position.
An instrument for determining the extent and shape of the field of vision.
Where this word comes from
From Latin perimetros, Ancient Greek περίμετρος (perímetros). Equivalent to peri- + meter.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.