1

sphere

play
noun \ˈsfir\

Definition of sphere

  1. 1a (1) :  the apparent surface of the heavens of which half forms the dome of the visible sky (2) :  any of the concentric and eccentric revolving spherical transparent shells in which according to ancient astronomy stars, sun, planets, and moon are setb :  a globe depicting such a sphere; broadly :  globe a

  2. 2a :  a globular body :  ballb :  planet, starc (1) :  a solid that is bounded by a surface consisting of all points at a given distance from a point constituting its center — see volume table (2) :  the bounding surface of a sphere

  3. 3 :  natural, normal, or proper place; especially :  social order or rank <not in the same sphere as his moneyed friends>

  4. 4a obsolete :  orbitb :  an area or range over or within which someone or something acts, exists, or has influence or significance <the public sphere>

spheric

play \ˈsfir-ik, ˈsfer-\ adjective archaic

sphericity

play \sfir-ˈi-sə-tē\ noun

Examples of sphere in a sentence

  1. All points on a sphere are the same distance from the center.

  2. Women at that time were confined to the domestic sphere.

  3. They recognize that jobs in the public sphere are valuable.

Origin and Etymology of sphere

Middle English spere globe, celestial sphere, from Anglo-French espere, from Latin sphaera, from Greek sphaira, literally, ball; perhaps akin to Greek spairein to quiver — more at spurn


First Known Use: 14th century


2

sphere

transitive verb

Definition of sphere

sphered

sphering

  1. 1 :  to place in a sphere or among the spheres :  ensphere

  2. 2 :  to form into a sphere

1602

First Known Use of sphere

1602


SPHERE Defined for English Language Learners

1

sphere

play
noun \ˈsfir\

Definition of sphere for English Language Learners

  • : a round object

  • geometry : a three-dimensional shape that looks like a ball

  • : an area of influence or activity


SPHERE Defined for Kids

sphere

play
noun \ˈsfir\

Definition of sphere for Students

  1. 1 :  an object (as the moon) shaped like a ball

  2. 2 :  a figure so shaped that every point on its surface is an equal distance from its center

  3. 3 :  a field of influence or activity <Electrical work is outside a plumber's sphere.>



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