Definizione monolingua

sphere

sphere (plural spheres)

1. (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 [from 14th c.].
2. A spherical physical object; a globe or ball. [from 14th c.]
   • 2011, Piers Sellers, The Guardian, 6 Jul 2011:

     So your orientation changes a little bit but it sinks in that the world is a sphere, and youre going around it, sometimes under it, sideways, or over it.

3. (astronomy, now rare) The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded. [from 14th c.]
   • 1635, John Donne, ""His parting form her"":

     Though cold and darkness longer hang somewhere, / Yet Phoebus equally lights all the Sphere.

4. (historical, astronomy, mythology) 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). [from 14th c.]
   • 1603, John Florio, translating Michel de Montaigne, Essays, vol. 1 p. 153:

     It is more simplicitie to teach our children [...] [t]he knowledge of the starres, and the motion of the eighth spheare, before their owne.

   • 1646, Thomas Browne, Pseudodoxia Epidemica, I.6:

     They understood not the motion of the eighth sphear from West to East, and so conceived the longitude of the Stars invariable.

5. (mythology) An area of activity for a planet; or by extension, an area of influence for a god, hero etc. [from 14th c.]
6. (figuratively) The region in which something or someone is active; ones province, domain. [from 17th c.]
   • 1946, Bertrand Russell, History of Western Philosophy, I.20:

     They thought – originally on grounds derived from religion – that each thing or person had its or his proper sphere, to overstep which is ‘unjust’.

7. (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 [from 20th c.].

Definizione dizionario sphere

	sfera
	mathematics: regular three-dimensional object
	region in which something or someone is active
	spherical physical object
	Un particolare ambiente o percorso di vita.
	A particular environment or walk of life.
	Oggetto rotondo tridimensionale di cui ogni punto della superficie è equidistante dal centro.
	Round three-dimensional body whose surface has at each point the same distance from the center.

	campo
	Un particolare ambiente o percorso di vita.
	A particular environment or walk of life.

ambiente

circolo

globo

grano

palla

zolla

Altri significati:

(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 [from 14th c.].

(mythology) An area of activity for a planet; or by extension, an area of influence for a god, hero etc. [from 14th c.]

A spherical physical object; a globe or ball. [from 14th c.]

(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 [from 20th c.].

(astronomy, now rare) The apparent outer limit of space; the edge of the heavens, imagined as a hollow globe within which celestial bodies appear to be embedded. [from 14th c.]

historical, astronomy, mythology: any of the concentric globes formerly believed to rotate around the Earth

(figuratively) The region in which something or someone is active; one's province, domain. [from 17th c.]

(historical, astronomy, mythology) 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''' ). [from 14th c.]