circinus.
pair of compasses; circular line/arc; [ad ~um => in a circle/arc, circularly];
Meaning & usage
A pair of compasses; a tool for measuring distances or constructing a circle.
Where this word comes from
Etymology tree Proto-Indo-European *(s)ker-der. Ancient Greek κίρκος (kírkos)bor. Latin circus Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -inus Latin circinus From circus + -inus.
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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.