planisphere
Americannoun
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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.
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a projection or representation of the whole or a part of a sphere on a plane.
noun
Other Word Forms
Etymology
Origin of planisphere
1350–1400; plani- + sphere; replacing Middle English planisperie < Medieval Latin plānisphaerium
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Getty exhibits a planisphere clock, demonstrating mean time and solar time in cities around the globe, as well as the timing of the tides in northern ports.
From The Guardian • Jul. 29, 2011
In summer I sometimes come outside at night with my torch and my planisphere, which is two circles of plastic with a pin through the middle.
From "The Curious Incident of the Dog in the Night-Time" by Mark Haddon
Then we go down the street where there is a good electric light at the corner and we hold our planisphere up, almost straight overhead.
From Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place by Rogers, Julia Ellen
It represents the earth as a circular planisphere.
From Astronomical Myths Based on Flammarions's History of the Heavens by Blake, John F.
On that planisphere the seaboard of the present states of Maryland, New Jersey, New York, and Rhode Island is called "the land of Estevan Gomez."
From Henry Hudson A Brief Statement of His Aims and His Achievements by Janvier, Thomas A. (Thomas Allibone)
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
