### sphere

- a particular environment or walk of life
- the geographical area in which one nation is very influential
- a particular aspect of life or activity
- a three-dimensional closed surface such that every point on the surface is equidistant from the center

A sphere (from Greek σφαῖρα — sphaira, `globe, ball`) is a perfectly round geometrical and circular object in three-dimensional space that resembles the shape of a completely round ball. Like a circle, which, in geometric contexts, is in two dimensions, a sphere is defined mathematically as the set of points that are all the same distan.....

Found on http://en.wikipedia.org/wiki/Sphere

• (v. t.) To form into roundness; to make spherical, or spheral; to perfect. • (n.) The extension of a general conception, or the totality of the individuals or species to which it may be applied. • (n.) Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth. • (n.) The apparent surface...

Found on http://thinkexist.com/dictionary/meaning/sphere/

(from the article `mathematics`) ...he proved: that the area of a circle equals the area of a triangle whose height equals the radius of the circle and whose base equals its ... There are nine extant treatises by Archimedes in Greek. The principal results in On the Sphere and Cylinder (in two books) are that the surface area ... ...a...

Found on http://www.britannica.com/eb/a-z/s/139

(sfēr) a three dimensional round body; called also globus. adj., spher´ical., adj. segmentation sphere morula. blastomere.

Found on http://www.encyclo.co.uk/local/21001

1. <geometry> A body or space contained under a single surface, which in every part is equally distant from a point within called its center. ... 2. Hence, any globe or globular body, especially a celestial one, as the sun, a planet, or the earth. 'Of celestial bodies, first the sun, A mighty sphere, he framed.' (Milton) ... 3. <astronomy&...

Found on http://www.encyclo.co.uk/local/20973

sphere of influence *noun* the geographical area in which one nation is very influential

Found on https://www.encyclo.co.uk/local/20974

*[website]* Sphere was a blog search engine. The Sphere search engine delivered blog posts based on algorithms that combine semantic matching with authority factors to deliver results relevant to the search query. Sphere also organized bloggers by topic. The company produced an application called Sphere It! allowing users to seek blog posts r...

Found on http://en.wikipedia.org/wiki/Sphere_(website)

**Sphere** * noun* [ Middle English

* spere* , Old French

* espere* , French

* sphère* , Latin

* sphaera* ,. Greek ......... a sphere, a ball.]

** 1.** * (Geom.)* A body or space contained under a single surface, which in every part is equally distant from a point within called its

*...*Found on http://www.encyclo.co.uk/webster/S/162

**Sphere** * transitive verb* [

* imperfect & past participle * __ Sphered__ ;

* present participle & verbal noun * __ Sphering__ .]

** 1.** To place in a sphere, or among the spheres; to insphere. « The glorious planet Sol In noble eminence enthroned an...

Found on http://www.encyclo.co.uk/webster/S/162

A solid figure that has the shape of a round ball; all points are the same distance from the center Example:

Found on http://www.hbschool.com/glossary/math2/index6.html

Perfectly round object with all points on its surface the same distance from the centre. This distance is the radius of the sphere. For a sphere of radius r, the volume V = 4/3πr3 and the surface area

Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0036915.html

radius=4pi(r squared), volume=4/3pi(r cubed)

Found on http://www.chemistry-dictionary.com/definition/sphere.php

Roughly speaking, a ball-shaped object. In everyday usage a sphere is often considered to be solid; mathematicians call this the interior of the sphere. In mathematics, a sphere is a quadric consisting only of a surface and is therefore hollow. More precisely, a sphere is the set of all points in th...

Found on http://www.daviddarling.info/encyclopedia/S/sphere.html

sphere Related ball, sphere-word units: glob-, glom-; hemoglobin-.

Found on http://www.wordinfo.info/words/index/info/view_unit/1999/5

sphere, in geometry, the three-dimensional analogue of a circle. The term is applied to the spherical surface, every point of which is the same distance (the radius) from a certain fixed point (the center), and also to the volume enclosed by such a surface. The curve formed by a plane cutting a sphe...

Found on http://www.infoplease.com/ce6/sci/A0846263.html

The surface area and volume of a sphere of radius, rSurface area, AVolume, V

Found on http://www.diracdelta.co.uk/science/source/s/p/sphere/source.html

Type: Term Pronunciation: sfēr Definitions: 1. A ball or globular body.

Found on http://www.medilexicon.com/medicaldictionary.php?t=83519

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*n]* - a particular environment or walk of life 2. [n] - a solid figure bounded by a spherical surface (including the space it encloses) 3. [n] - a three-dimensional closed surface such that every point on the surface is equidistant from the center 4. [n] - the geographical area in which one nation is very influential 5. [n] -...

Found on http://www.webdictionary.co.uk/definition.php?query=sphere

**No exact match found**