About The Word Parabola
Learn about the word Parabola to help solve your crossword puzzle. Discover Parabola definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Parabola
| Parabola Definition And Meaning |
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What's The Definition Of Parabola?
[n] a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve
Synonyms | Synonyms for Parabola: Related Terms | Find terms related to Parabola: arc | bow | catacaustic | catenary | caustic | circle | conchoid | crook | curl | curve | diacaustic | ellipse | festoon | hook | hyperbola | lituus | sinus | tracery See Also | conic | conic section Parabola In Webster's Dictionary \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.
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