Meaning of PARABOLA
Pronunciation:   pu'rabulu



WordNet Dictionary 

 Definition:  
[n] a plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve 

PARABOLA is a 8 letter word that starts with P. 
 See Also:   conic, conic section  
Webster's 1913 Dictionary 

 Definition:   \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.


Thesaurus Terms 

 Related Terms:   arc, bow, catacaustic, catenary, caustic, circle, conchoid, crook, curl, curve, diacaustic, ellipse, festoon, hook, hyperbola, lituus, sinus, tracery 
 

