Parabola

//pəˈɹæbələ// noun

Definitions

Noun
  1. 1
    The conic section formed by the intersection of a cone with a plane parallel to a tangent plane to the cone; the locus of points equidistant from a fixed point (the focus) and line (the directrix).

    "And it saves his life. As he's buzzing down a curving, narrow canal, a narrow green parabola appears hanging across the water in front of him, suddenly rising out of the water and snapping into a perfectly straight line at neck level."

  2. 2
    a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve wordnet
  3. 3
    Synonym of parable. rhetoric

Etymology

Borrowed from New Latin parabola, from Ancient Greek παραβολή (parabolḗ), from παραβάλλω (parabállō, “I set side by side”), from παρά (pará, “beside”) + βάλλω (bállō, “I throw”). Doublet of parable, parole, and palaver.

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