#### Conical projection at English => English (Websters 1913) Of Explained:

Projection \Pro*jec"tion\, n. [L. projectio: cf. F. projection.]

1. The act of throwing or shooting forward.

2. A jutting out; also, a part jutting out, as of a building;

an extension beyond something else.

3. The act of scheming or planning; also, that which is

planned; contrivance; design; plan. --Davenant.

4. (Persp.) The representation of something; delineation;

plan; especially, the representation of any object on a

perspective plane, or such a delineation as would result

were the chief points of the object thrown forward upon

the plane, each in the direction of a line drawn through

it from a given point of sight, or central point; as, the

projection of a sphere. The several kinds of projection

differ according to the assumed point of sight and plane

of projection in each.

5. (Geog.) Any method of representing the surface of the

earth upon a plane.

{Conical projection}, a mode of representing the sphere, the

spherical surface being projected upon the surface of a

cone tangent to the sphere, the point of sight being at

the center of the sphere.

{Cylindric projection}, a mode of representing the sphere,

the spherical surface being projected upon the surface of

a cylinder touching the sphere, the point of sight being

at the center of the sphere.

{Globular}, {Gnomonic}, {Orthographic}, {projection},etc. See

under {Globular}, {Gnomonic}, etc.

{Mercator's projection}, a mode of representing the sphere in

which the meridians are drawn parallel to each other, and

the parallels of latitude are straight lines whose

distance from each other increases with their distance

from the equator, so that at all places the degrees of

latitude and longitude have to each other the same ratio

as on the sphere itself.

{Oblique projection}, a projection made by parallel lines

drawn from every point of a figure and meeting the plane

of projection obliquely.

{Polar projection}, a projection of the sphere in which the

point of sight is at the center, and the plane of

projection passes through one of the polar circles.

{Powder of projection} (Alchemy.), a certain powder cast into

a crucible or other vessel containing prepared metal or

other matter which is to be thereby transmuted into gold.

{Projection of a point on a plane} (Descriptive Geom.), the

foot of a perpendicular to the plane drawn through the

point.

{Projection of a straight line of a plane}, the straight line

of the plane connecting the feet of the perpendiculars let

fall from the extremities of the given line.

Syn: See {Protuberance}.

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.

#### conical projection at English => English (WordNet) Of Explained:

**conical projection**

n : a map projection of the globe onto a cone with its point

over one of the earth's poles [syn: {conic projection}]