cosinus.
cosine, cosinus (in a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse)
Meaning & usage
cosine, cosinus (in a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse)
Where this word comes from
Learned borrowing from New Latin cosinus.
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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.