Search Result for "parabola":
Wordnet 3.0

NOUN (1)

1. a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve;

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The Collaborative International Dictionary of English v.0.48:Parabola \Pa*rab"o*la\, n.; pl. Parabolas. [NL., fr. Gr. ?; --
so called because its axis is parallel to the side of the
cone. See Parable, and cf. Parabole.] (Geom.)
(a) A kind of curve; one of the conic sections formed by the
intersection of the surface of a cone with a plane
parallel to one of its sides. It is a curve, any point of
which is equally distant from a fixed point, called the
focus, and a fixed straight line, called the directrix.
See Focus.
(b) One of a group of curves defined by the equation y =
ax^n where n is a positive whole number or a positive
fraction. For the cubical parabola n = 3; for the
semicubical parabola n = 3/2. See under Cubical, and
Semicubical. The parabolas have infinite branches, but
no rectilineal asymptotes.
[1913 Webster]

WordNet (r) 3.0 (2006):parabola
n 1: a plane curve formed by the intersection of a right
circular cone and a plane parallel to an element of the
curve

Moby Thesaurus II by Grady Ward, 1.0:18 Moby Thesaurus words for "parabola":
arc, bow, catacaustic, catenary, caustic, circle, conchoid, crook,
curl, curve, diacaustic, ellipse, festoon, hook, hyperbola, lituus,
sinus, tracery

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