[puh-rab-uh-luh]
/pəˈræb ə lə/

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.

British Dictionary definitions for parabola

/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

Word Origin

C16: via New Latin from Greek parabolē a setting alongside; see parable

Word Origin and History for parabola

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 in Science

parabola in Culture

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Scrabble
Words With Friends

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