conic

• POS: Adjective, Noun
• HYPHEN: con=ic

CIDE DICTIONARY

conic, a. [Gr. : cf. F. conique. See Cone.].

•  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.  [1913 Webster]
•  Of or pertaining to a cone; as, conic sections.  [1913 Webster]

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, n. 

 A conic section.  [1913 Webster]

OXFORD DICTIONARY

conic, adj. & n.
--adj. of a cone.
--n.
1 a conic section.
2 (in pl.) the study of conic sections.

Idiom

conic section a figure formed by the intersection of a cone and a plane.

Etymology

mod.L conicus f. Gk konikos (as cone)

ROGET THESAURUS

conic

Rotundity

N rotundity, roundness, cylindricity, sphericity, spheroidity, globosity, cylinder, cylindroid, cylindrical, barrel, drum, roll, roller, rouleau, column, rolling-pin, rundle, cone, conoid, pear shape, egg shape, bell shape, sphere, globe, ball, boulder, bowlder, spheroid, ellipsoid, oblong spheroid, oblate spheroid, prolate spheroid, drop, spherule, globule, vesicle, bulb, bullet, pellet, pelote, clew, pill, marble, pea, knob, pommel, horn, knot (convolution), curved surface, hypersphere, hyperdimensional surface, rotund, round, cylindric, cylindrical, cylindroid, columnar, lumbriciform, conic, conical, spherical, spheroidal, globular, globated, globous, globose, egg shaped, bell shaped, pear shaped, ovoid, oviform, gibbous, rixiform, campaniform, campanulate, campaniliform, fungiform, bead-like, moniliform, pyriform, bulbous, tres atque rotundus, round as an orange, round as an apple, round as a ball, round as a billiard ball, round as a cannon ball.