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planisphere

noun
pla·​ni·​sphere | \ ˈplā-nə-ˌsfir How to pronounce planisphere (audio) \

Definition of planisphere

: a representation of the circles of the sphere on a plane especially : a polar projection of the celestial sphere and the stars on a plane with adjustable circles or other appendages for showing celestial phenomena for any given time

Other Words from planisphere

planispheric \ ˌplā-​nə-​ˈsfir-​ik How to pronounce planispheric (audio) , -​ˈsfer-​ How to pronounce planispheric (audio) \ adjective

First Known Use of planisphere

14th century, in the meaning defined above

History and Etymology for planisphere

alteration of Middle English planisperie, from Medieval Latin planisphaerium, from Latin planum plane + sphaera sphere

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The first known use of planisphere was in the 14th century

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Britannica.com: Encyclopedia article about planisphere

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