The elliptical mirror, varying from the parabola by less than the breadth of a hair, throws an image which is useless.
He reached the height of the 'parabola,' and is now about to descend.
Again, the mass-centre of a chain of 983 particles connected by strings, projected anyhow under gravity, will describe a parabola.
You will remember that a Republican State is represented by a parabola.
In her he sees the motion of stars and planets, the lines of sphere, parabola and ellipse.
Its actual path will be a curve, which in this case is a parabola.
Evidently, then, it is not safe to class it as a parabola because of inability to detect the elements of an ellipse.
A heavy silver match-box was tossed in a parabola through the air.
The word transcendental is like a parabola, in that there is no knowing where its meaning ends.
This curve—called the parabola—is that of all projected or bounding objects.
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.