Sphere vs. Hemisphere

Spherenoun

(mathematics) A regular three-dimensional object in which every cross-section is a circle; the figure described by the revolution of a circle about its diameter .

Spherenoun

A spherical physical object; a globe or ball.

Spherenoun

The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded.

Spherenoun

Any of the concentric hollow transparent globes formerly believed to rotate around the Earth, and which carried the heavenly bodies; there were originally believed to be eight, and later nine and ten; friction between them was thought to cause a harmonious sound (the music of the spheres).

Spherenoun

(mythology) An area of activity for a planet; or by extension, an area of influence for a god, hero etc.

Spherenoun

(figuratively) The region in which something or someone is active; one's province, domain.

Spherenoun

(geometry) The set of all points in three-dimensional Euclidean space (or n-dimensional space, in topology) that are a fixed distance from a fixed point .

Spherenoun

(logic) The extension of a general conception, or the totality of the individuals or species to which it may be applied.

Sphereverb

(transitive) To place in a sphere, or among the spheres; to ensphere.

Sphereverb

(transitive) To make round or spherical; to perfect.

Spherenoun

A body or space contained under a single surface, which in every part is equally distant from a point within called its center.

Spherenoun

Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth.

Spherenoun

The apparent surface of the heavens, which is assumed to be spherical and everywhere equally distant, in which the heavenly bodies appear to have their places, and on which the various astronomical circles, as of right ascension and declination, the equator, ecliptic, etc., are conceived to be drawn; an ideal geometrical sphere, with the astronomical and geographical circles in their proper positions on it.

Spherenoun

The extension of a general conception, or the totality of the individuals or species to which it may be applied.

Spherenoun

Circuit or range of action, knowledge, or influence; compass; province; employment; place of existence.

Spherenoun

Rank; order of society; social positions.

Spherenoun

An orbit, as of a star; a socket.

Sphereverb

To place in a sphere, or among the spheres; to insphere.

Sphereverb

To form into roundness; to make spherical, or spheral; to perfect.

Spherenoun

a particular environment or walk of life;

Spherenoun

any spherically shaped artifact

Spherenoun

the geographical area in which one nation is very influential

Spherenoun

a particular aspect of life or activity;

Spherenoun

a solid figure bounded by a spherical surface (including the space it encloses)

Spherenoun

a three-dimensional closed surface such that every point on the surface is equidistant from the center

Spherenoun

the apparent surface of the imaginary sphere on which celestial bodies appear to be projected

Spherenoun

a round solid figure, or its surface, with every point on its surface equidistant from its centre.

Spherenoun

a spherical object; a ball or globe

Spherenoun

a globe representing the earth

Spherenoun

a celestial body

Spherenoun

the sky perceived as a vault upon or in which celestial bodies are represented as lying.

Spherenoun

each of a series of revolving concentrically arranged spherical shells in which celestial bodies were formerly thought to be set in a fixed relationship.

Spherenoun

an area of activity, interest, or expertise; a section of society or an aspect of life distinguished and unified by a particular characteristic

Sphereverb

enclose in or as if in a sphere

Sphereverb

form into a rounded or perfect whole

Sphere

A sphere (from Greek σφαῖρα—sphaira, ) is a geometrical object in three-dimensional space that is the surface of a ball (viz., analogous to the circular objects in two dimensions, where a circumscribes its ). Like a circle in a two-dimensional space, a sphere is defined mathematically as the set of points that are all at the same distance r from a given point in a three-dimensional space.

Hemispherenoun

Half of the celestial sphere, as divided by either the ecliptic or the celestial equator .

Hemispherenoun

(figuratively) A realm or domain of activity .

Hemispherenoun

(geography) Half of the Earth, such as the Northern Hemisphere, Southern Hemisphere, Western Hemisphere or Eastern Hemisphere, Land Hemisphere, Water Hemisphere etc. .

Hemispherenoun

(geometry) Any half-sphere, formed by a plane intersecting the center of a sphere. .

Hemispherenoun

(cartography) A map or projection of a celestial or terrestrial hemisphere .

Hemispherenoun

(anatomy) Either of the two halves of the cerebrum. .

Hemispherenoun

A half sphere; one half of a sphere or globe, when divided by a plane passing through its center.

Hemispherenoun

Half of the terrestrial globe, or a projection of the same in a map or picture.

Hemispherenoun

The people who inhabit a hemisphere.

Hemispherenoun

half of the terrestrial globe

Hemispherenoun

half of a sphere

Hemispherenoun

either half of the cerebrum