Word Meaning

Find the meaning or definition of a word or phrase in English


Meaning of backstaff

- An instrument formerly used for taking the altitude of the heavenly bodies, but now superseded by the quadrant and sextant; -- so called because the observer turned his back to the body observed.

Crossword clue for backstaff

- Device that uses the shadow of the sun for navigation
- Device that uses the shadow of the sun to navigate