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1. A representation of a sphere or part of a sphere on a plane surface.
2. Astronomy A polar projection of half or more of the celestial sphere on a chart equipped with an adjustable overlay to show the stars visible at a particular time and place.
pla′ni·spher′ic (-sfîr′ĭk, -sfĕr′-), pla′ni·spher′i·cal (-ĭ-kəl) adj.
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.
(Physical Geography) a projection or representation of all or part of a sphere on a plane surface, such as a polar projection of the celestial sphere onto a chart
[C14: from Medieval Latin plānisphaerium, from Latin plānus flat + Greek sphaira globe]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
plan•i•sphere(ˈplæn əˌsfɪər, ˈpleɪ nə-)
1. a map of half or more of the celestial sphere with a device for indicating the part of a given location visible at a given time.
2. a projection or representation of the whole or a part of a sphere on a plane.
plan`i•spher′i•cal (-ˈsfɛr ɪ kəl) plan`i•spher′ic, plan`i•spher′al, adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
a map showing half or more of the sphere of the heavens, indicating which part is visible at what hour from a given location. — planispheric, planispherical, adj.See also: Astronomy
a map showing half or more of the sphere of the heavens, indicating which part is visible at what hour from a given location. — planispheric, planispherical, adj.See also: Maps
an astrolabe.See also: Representation
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
planisphere[ˈplænɪˌsfɪəʳ] n → planisfero
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995