Definition of hyperbola in English:


Syllabification: hy·per·bo·la
Pronunciation: /hīˈpərbələ

noun (plural hyperbolas or hyperbolae /-bəlē/)

  • 1A symmetrical open curve formed by the intersection of a circular cone with a plane at a smaller angle with its axis than the side of the cone.
    More example sentences
    • There are many topics covered in the book including a study of circles, triangles, geometric series, ellipses, parabolas and hyperbolas.
    • Let us begin where we left off, with the quadratic curves known as the circle, ellipse, hyperbola and parabola.
    • There are three non-degenerate conics: the ellipse, the parabola, and the hyperbola.
  • 1.1 Mathematics The pair of hyperbolas formed by the intersection of a plane with two equal cones on opposites of the same vertex.
    More example sentences
    • He read Wallis's method for finding a square of equal area to a parabola and a hyperbola which used indivisibles.
    • The equation of this curve can be shown to be that of a hyperbola whose curvature is inversely related to the value of V.
    • The first shows that if AB is a fixed line then locus of a point P such that 2 angle PAB = angle PBA is a hyperbola.


mid 17th century: modern Latin, from Greek huperbolē 'excess' (from huper 'above' + ballein 'to throw').

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