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zenith telescope

noun

  1. an instrument used to determine the latitude of stars, similar to the meridian circle but fitted with an extremely sensitive level and a declination micrometer
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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