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Tuesday, December 16th, 2025
the Third Week of Advent
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Bible Dictionaries
Backstaff

Webster's Dictionary

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(n.) An instrument formerly used for taking the altitude of the heavenly bodies, but now superseded by the quadrant and sextant; - so called because the observer turned his back to the body observed.

Bibliography Information
Webster, Noah. Entry for 'Backstaff'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​b/backstaff.html. 1828.
 
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