Definition of cotangent in English:


Line breaks: co|tan|gent
Pronunciation: /kəʊˈtandʒ(ə)nt


  • (In a right-angled triangle) the ratio of the side (other than the hypotenuse) adjacent to a particular acute angle to the side opposite the angle.
    More example sentences
    • If the tangent of an angle is a/b then the cotangent of that angle is b/a.
    • The first tabulates logarithms of the sine, cosine, tangent and cotangent functions at 1 intervals and shows how to solve triangles using logarithmic functions.
    • I can't tell the difference between radians, tangents, cotangents, secants, etc.

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Word of the day skosh
Pronunciation: skəʊʃ
a small amount; a little