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单词 planisphere
释义

WordReference Random House Unabridged Dictionary of American English © 2024
plan•i•sphere  (planə sfēr′, plānə-),USA pronunciation n. 
  1. Astronomya 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. Astronomya projection or representation of the whole or a part of a sphere on a plane.
  • Medieval Latin plānisphaerium
  • replacing Middle English planisperie 1350–1400; plani- + sphere
plan•i•spher•i•cal  (plan′ə sferi kəl, -sfēr-, plā′nə-),USA pronunciation plan′i•spheric, plan•i•spher•al  (plan′i sfērəl, plā′nə-),USA pronunciation 
Collins Concise English Dictionary © HarperCollins Publishers::
planisphere /ˈplænɪˌsfɪə/ n
  1. 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
Etymology: 14th Century: from Medieval Latin plānisphaerium, from Latin plānus flat + Greek sphaira globe
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更新时间:2025/7/23 15:23:30