### Online Dictionary

conic section Explained

#### conic section at English => English (The Britannica Concise) Of Explained:

Any two-dimensional curve traced by the intersection of a right circular cone with a plane. If the plane is perpendicular to the cone's axis, the resulting curve is a circle. Intersections at other angles result in ellipses, parabolas, and hyperbolas. The conic sections are studied in Euclidean geometry to analyze their physical properties and in coordinate geometry to derive their equations. In either context, they have useful applications to optics, antenna design, structural engineering, and architecture.

#### Conic section at English => English (Websters 1913) Of Explained:

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 section at English => English (WordNet) Of Explained:

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

#### conic section at English (WD) Of Explained:

==English==
Inter: wikipedi » a

### Noun

• Inter: geometr » y Any of the four distinct shapes that are the intersections of a cone with a plane, namely the circle, ellipse, parabola and hyperbola.

* conic

#### Translations

Inter: trans-top » Any of the four distinct shapes that are the intersections of a cone with a plane
• Armenian: Inter: t- » hy|կոնական հատույթ|tr=konakan hatuyt’
• Catalan: Inter: t- » ca|secció cònica|f, Inter: t- » ca|cònica|f
• Czech: Inter: t+ » cs|kuželosečka|f
• Dutch: Inter: t+ » nl|kegelsnede|m|f
• Finnish: Inter: t+ » fi|kartioleikkaus
• German: Inter: t- » de|Kegelschnitt|m
• Polish: przekrój stożkowy {{m}}, stożkowa {{f}}

Inter: trans-mi » d
• Portuguese: Inter: t- » pt|cônica|f, Inter: t- » pt|seção cônica
• Romanian: Inter: t- » ro|secțiune de con
• Russian: Inter: t- » ru|коническое сечение
• Spanish: Inter: t+ » es|sección cónica|f, Inter: t+ » es|cónica|f
• Swedish: Inter: t+ » sv|kägelsnitt|n
• Thai: Inter: t- » th|ภาคตัดกรวย

• Inter: trans-botto » m
Translation: et » conic section
Translation: io » conic section
Translation: id » conic section
Translation: kn » conic section
Translation: sv » conic section
Translation: ta » conic section