单词 | planisphere |
释义 | planisphere n. a map formed by the projection of a sphere or part of a sphere on a plane, esp. to show the appearance of the heavens at a specific time or place. Derivatives planispheric adj. Etymology: ME f. med.L planisphaerium (as PLANE(1), SPHERE): infl. by F planisph{egrave}re |
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