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The Collaborative International Dictionary

Conic \Con"ic\, Conical \Con"ic*al\, a. [Gr. ?: cf. F. conique. See Cone.]

  1. Having the form of, or resembling, a geometrical cone; round and tapering to a point, or gradually lessening in circumference; as, a conic or conical figure; a conical vessel.

  2. Of or pertaining to a cone; as, conic sections.

    Conic section (Geom.), a curved line formed by the intersection of the surface of a right cone and a plane. The conic sections are the parabola, ellipse, and hyperbola. The right lines and the circle which result from certain positions of the plane are sometimes, though not generally included.

    Conic sections, that branch of geometry which treats of the parabola, ellipse, and hyperbola.

    Conical pendulum. See Pendulum.

    Conical projection, a method of delineating the surface of a sphere upon a plane surface as if projected upon the surface of a cone; -- much used by makers of maps in Europe.

    Conical surface (Geom.), a surface described by a right line moving along any curve and always passing through a fixed point that is not in the plane of that curve.


Conic \Con"ic\, n. (Math.) A conic section.

Douglas Harper's Etymology Dictionary

1560s, "pertaining to a cone," from Latin conicus, from Greek konikos "cone-shaped," from konos (see cone).


a. conical. n. (context geometry English) A conic section.


n. (geometry) a curve generated by the intersection of a plane and a circular cone [syn: conic section]


adj. relating to or resembling a cone; "conical mountains"; "conelike fruit" [syn: conical, conelike, cone-shaped]


Usage examples of "conic".

More work had also conic his way as a result of the critical need for a rate increase, now being considered by the Public Utilities Commission.

That was when Glavyn found that he conic suddenly move his arms again.

She had named the vast conic object the bridgehead, because that was its function.

Various combinations of conic sections and the six surfaces of revolution symmetrical around an axis, the plane, the sphere, the cylinder, the catenoid, the unduloid, and the nodoid.

If he was defeated, of course, they'd have to grovel to Gorfyddyd, but grovelling, I've noticed, conics naturally to Christians.

Daniel passes an extraordinarily pleasant half-hour turning Dappa’s steady observations into sines and cosines, conic sections and fluxions.

Then Coyle he of the weak bladder and suspicious discharge gets excused to go back into the eastern tree-line out of sight of the distaffs and pee, so the other three get a minute to jog over to the pavilion and stand with their hands on their hips and breathe and drink Gator-ade out of little conic paper cups you can't put down til they're empty.

In algebraic geometry a circle ended up being defined as `a conic section that passes through the two imaginary circular points at infinity', which sure puts a pair of compasses in their place.

Like the shoreline of Cone, the conic section, where the land folk meet the sea folk for love.

And a stream of migrant evenings, of which a sort of conic section cut through the sky made visible the successive layers, pink, blue and green, were gathered in readiness for departure to warmer climes.

In this light I view the conic sections, curves of the higher orders, perhaps even spherical trigonometry, algebraical operations beyond the 2d dimension, and fluxions.

Apollonius of Perga, the mathematician who demonstrated the forms of the conic sections* - ellipse, parabola and hyperbola - the curves, as we now know, followed in their orbits by the planets, the comets and the stars.

On one page of the notebook I drew to the best of my ability the three conic sections with their axes and centers: an ellipse, a parabola, and an hyperbola.

Let me remind the reader that the intersection of such a body by a plane produces one of the three conic sections, depending on the angle of the cut.

The Greeks, from Euclid to Apollonius, had established hundreds of theorems concerning conic sections.