semiperimeter.
Half of the perimeter (sum of the lengths of the sides) of a polygon. The term is typically applied to triangles, cyclic quadrilaterals, and regular polygons.
Meaning & usage
Half of the perimeter (sum of the lengths of the sides) of a polygon. The term is typically applied to triangles, cyclic quadrilaterals, and regular polygons.
Where this word comes from
Etymology tree Proto-Indo-European *sem- Proto-Indo-European *sēmi Latin sēmi-bor. English semi- English perimeter English semiperimeter From semi- + perimeter.
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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.