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1. Mathematics A three-dimensional surface, all points of which are equidistant from a fixed point.
2. A spherical object or figure.
3. A celestial body, such as a planet or star.
4. The sky, appearing as a hemisphere to an observer: the sphere of the heavens.
5. Any of a series of concentric, transparent, revolving globes that together were once thought to contain the moon, sun, planets, and stars.
a. A range or extent of knowledge, interest, or activity: a problem that falls within the sphere of biophysics. See Synonyms at field.
b. A social level or part of society or group: knew few people beyond his partner's sphere.
c. A range of power or influence: within the sphere of the empire.
tr.v. sphered, spher·ing, spheres
1. To form into a sphere.
2. To put in or within a sphere.
[Middle English spere, from Old French espere, from Latin sphaera, from Greek sphaira.]
sphe·ric′i·ty (sfî-rĭs′ĭ-tē) n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Mathematics) the state or form of being spherical
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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|Noun||1.||sphericity - the roundness of a 3-dimensional object|
roundness - the property possessed by a line or surface that is curved and not angular
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
n → Kugelform f → or -gestalt f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007