cosine
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cosine
- /ˈkəʊ.saɪn/ UK
- /ˈkoʊ.saɪn/ US
- /ˈkəʉ.sɑɪn/ Australia
Sounds like cosign · Rhymes with -əʊsaɪn, -oʊsaɪn
Where it comes from
From co- + sine, short for complementi sinus in Latin, meaning “sine of the complement”. Doublet of cosinus.
noun cosines
- In a right triangle, the ratio of the length of the side adjacent to an acute angle to the length of the hypotenuse. Symbol: cos
Translations
Every language
noun trigonometric function
| Español | coseno |
|---|---|
| 한국어 | 코사인 kosain, 여현 yeohyeon |
| 日本語 | コサイン kosain, 余弦 yogen |
| 中文 | 餘弦 /余弦 yúxián |
| Português | co-seno, cosseno |
| Français | cosinus |
| Deutsch | Kosinus |
| Italiano | coseno |
| Ελληνικά | συνημίτονο synimítono |
| Română | cosinus |
| Русский | ко́синус kósinus |
| Tiếng Việt | côsin |
| العربية | جَيْب تَمَام jayb tamām |
| עברית | קוסינוס cosinus |
Talk about this word "cosine." Wiktionary, via Micwyn, micwyn.com/word/cosine. Accessed 6 Nov. 2026. cosine. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/cosine "cosine." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/cosine.Cite this
@misc{cosine_2026,
title = {cosine},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/cosine},
urldate = {2026-11-06}
}
