Circles - Definitions from Dictionary.com

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American Heritage Dictionary - Cite This Source - Share This

cir·cle Audio Help (sûr'kəl) Pronunciation Key

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n.

A plane curve everywhere equidistant from a given fixed point, the center.
A planar region bounded by a circle.
Something, such as a ring, shaped like such a plane curve.
A circular course, circuit, or orbit: a satellite's circle around the earth.
A traffic circle.
A curved section or tier of seats in a theater.
A series or process that finishes at its starting point or continuously repeats itself; a cycle.
A group of people sharing an interest, activity, or achievement: well-known in artistic circles.
A territorial or administrative division, especially of a province, in some European countries.
A sphere of influence or interest; domain.
Logic A vicious circle.

v. cir·cled, cir·cling, cir·cles

v. tr.

To make or form a circle around; enclose. See Synonyms at surround.
To move in a circle around.

v. intr.
To move in a circle. See Synonyms at turn.

[Middle English cercle, from Old French, from Latin circulus, diminutive of circus, circle, from Greek kirkos, krikos; see sker-² in Indo-European roots.]

cir'cler (-klər) n.

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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
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Circles

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The American Heritage Science Dictionary - Cite This Source - Share This

circle Audio Help (sûr'kəl) Pronunciation Key

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A closed curve whose points are all on the same plane and at the same distance from a fixed point (the center).

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