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Parabola

[puh-rab-uh-luh] /pəˈræb ə lə/

noun, Geometry.
1.
a plane curve formed by the intersection of a right circular cone with a plane parallel to a generator of the cone; the set of points in a plane that are equidistant from a fixed line and a fixed point in the same plane or in a parallel plane. Equation: y 2 = 2 px or x 2 = 2 py.
/pəˈræbələ/
noun
1.
a conic section formed by the intersection of a cone by a plane parallel to its side. Standard equation: y² = 4ax, where 2a is the distance between focus and directrix
n.

1570s, from Modern Latin parabola, from Greek parabole “parabola, comparison, analogy; application” (see parable), so called by Apollonius of Perga c.210 B.C.E. because it is produced by “application” of a given area to a given straight line. It had a different sense in Pythagorean geometry. Related: Parabolic.
parabola
(pə-rāb’ə-lə)

The curve formed by the set of points in a plane that are all equally distant from both a given line (called the directrix) and a given point (called the focus) that is not on the line.
parabola [(puh-rab-uh-luh)]

A geometrical shape (see geometry) consisting of a single bend and two lines going off to an infinite distance.

Note: An object that is propelled away from the Earth and then drawn back by gravity, such as a fly ball in baseball, follows a path shaped like a parabola.

Tagged:

• Para-bola

[puh-rab-uh-luh] /pəˈræb ə lə/ noun, Geometry. 1. a plane curve formed by the intersection of a right circular cone with a plane parallel to a generator of the cone; the set of points in a plane that are equidistant from a fixed line and a fixed point in the same plane or in a parallel […]

• Parabolic

[par-uh-bol-ik] /ˌpær əˈbɒl ɪk/ adjective 1. having the form or outline of a . 2. having a longitudinal section in the form of a paraboloid or : a parabolic reflector. 3. of, relating to, or resembling a . [par-uh-bol-ik] /ˌpær əˈbɒl ɪk/ adjective 1. of, relating to, or involving a . /ˌpærəˈbɒlɪk/ adjective 1. of, […]

• Parabolic aerial

noun 1. a formal name for dish aerial

• Parabolical

[par-uh-bol-ik] /ˌpær əˈbɒl ɪk/ adjective 1. of, relating to, or involving a . /ˌpærəˈbɒlɪk/ adjective 1. of, relating to, or shaped like a parabola 2. shaped like a paraboloid: a parabolic mirror /ˌpærəˈbɒlɪk/ adjective 1. of or resembling a parable adj. mid-15c., from Late Latin parabolicus, from late Greek parabolikos “figurative,” from parabole (see parable). […]

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